Colloquial Expressions Are Seldom Used When Writing Formal English

Hey there, my word-wrangling buddies! Let’s have a little chinwag about something that trips a lot of us up when we’re trying to sound all proper and polished: those pesky colloquial expressions.
You know what I’m talking about, right? Those little verbal shortcuts, the slang, the idioms that make our everyday conversations sound so, well, us. Things like saying something is “the bee’s knees” or that you’re “feeling under the weather.” Super fun, super common when you’re grabbing a coffee with your pals or even when you’re just texting your mum. But try dropping “spill the beans” into a job application, and you might just get some seriously confused looks. Awkward!
So, why is it that when we switch gears from chatting to writing something more… let’s say, formal, these go-to phrases suddenly seem to disappear? It’s like they’re on vacation, sipping tiny umbrella drinks on a beach somewhere, leaving us to fend for ourselves with our thesauruses. And honestly, sometimes it feels like a real chore, doesn't it? Like trying to explain what a “doohickey” is to someone who’s never seen one. Good luck with that!
Think about it. When you’re writing an essay for school, a business proposal, or even a heartfelt apology letter (hopefully not too often!), you’re aiming for clarity, precision, and a certain level of respect. Colloquialisms, by their very nature, are often less precise. They rely on shared understanding within a group, a sort of linguistic wink and nod that might not translate well to a wider audience, or even to someone having a less than stellar day and just wants the facts, ma’am. You wouldn't want your boss to think you're "pulling their leg" when you're explaining a serious budget issue, would you? That could lead to some very interesting performance reviews.
Formal English is like a perfectly tailored suit. Everything is in its place, the lines are clean, and it conveys a sense of seriousness and professionalism. Colloquial expressions, on the other hand, are more like your comfy, well-worn pajamas. They’re cozy, familiar, and perfect for relaxing, but you wouldn’t wear them to a fancy gala. And for good reason! Imagine showing up to a black-tie event in your dinosaur-patterned PJs. People might appreciate your… boldness, but they probably wouldn’t take you seriously when discussing the hors d'oeuvres.

Let’s dive into a few examples, shall we? Take the phrase “kick the bucket.” If you were writing a formal obituary (a rather morbid topic, I know, but bear with me), you definitely wouldn’t say, “Sadly, after a long illness, Aunt Mildred finally kicked the bucket.” Oh no, no, no. Instead, you’d opt for something like, “It is with profound sadness that we announce the passing of Mildred Jones,” or perhaps, “Mildred Jones has departed this life.” Much more somber, much more appropriate for the occasion. Using “kicked the bucket” would be like serving instant coffee at a Michelin-star restaurant. Just… not the vibe.
Or consider “spitting the dummy.” In Australia, that’s a pretty common way to say someone’s having a tantrum or losing their temper. But if you’re writing a formal psychological report, you’d probably use terms like “exhibited aggressive behavior,” “experienced an emotional outburst,” or “demonstrated a loss of emotional control.” “Spitting the dummy” sounds a bit too… well, childish, for a professional context, even if it perfectly captures the essence of the situation in everyday chat. Unless, of course, the report is specifically about toddlers having tantrums, in which case… maybe! But even then, I’d lean towards more clinical language.

The same goes for all those little fillers we use in conversation. “Like,” “um,” “you know,” “basically.” These are our verbal security blankets. They give us a moment to think, to connect with our listener, or to emphasize a point. But in formal writing? They tend to make us sound a bit hesitant, a bit unsure, and frankly, a bit unprofessional. Imagine reading a scientific paper that said, “So, basically, the results were, like, pretty amazing, you know?” You’d be forgiven for wondering if the scientist had accidentally spilled their coffee all over the keyboard before hitting “submit.” We want our formal writing to be confident and clear, not sound like we’re desperately trying to remember what we were talking about five seconds ago.
This isn’t to say that colloquialisms are bad. Not at all! They’re a vibrant, wonderful part of language. They add color, humor, and personality. They’re how we bond with each other, how we share inside jokes, and how we navigate the complexities of life with a bit of levity. Think of all the hilarious memes and witty social media posts that rely entirely on colloquial language! They’re fantastic for those informal settings.
But when we’re in a formal setting, the goal shifts. We’re aiming for a different kind of impact. We want to be understood clearly, to be taken seriously, and to convey a sense of authority or expertise. And that often means putting on our “formal writing hat” and using language that is more universally understood, more precise, and less likely to be misinterpreted. It’s about choosing the right tool for the job, as they say. You wouldn't use a sledgehammer to crack a delicate Easter egg, would you?

So, the next time you’re faced with a piece of formal writing, take a moment to review your language. Are you accidentally letting any of your chatty friends sneak in? Are you “making a mountain out of a molehill” when you should be “detailing a significant challenge”? Are you “walking on eggshells” when you should be “exercising extreme caution”? It’s all about making that conscious choice to elevate your vocabulary and sentence structure.
It can feel like a bit of a puzzle at first, trying to find the “right” formal word for a colloquial phrase. Sometimes, it’s about translating the meaning rather than finding a direct word-for-word replacement. For instance, instead of saying you’re “over the moon” about a new project, you might write that you are “enthusiastic about” or “delighted with” the opportunity. See? It conveys a similar positive emotion but in a much more appropriate tone for, say, an email to your supervisor.

And hey, don’t feel discouraged if it takes a little practice. Learning to distinguish between formal and informal language is a skill, and like any skill, it improves with repetition. Think of it as adding new superpowers to your writing arsenal. You’ve got your everyday conversational superpowers, and now you’re unlocking your formal writing superpowers. Watch out, world!
The beauty of mastering this is that it gives you a greater command of the English language. You become more versatile, more adaptable. You can switch between being a friendly, chatty confidant and a clear, authoritative expert, all with the flick of a mental switch and a carefully chosen word. It’s like being a linguistic chameleon, blending into whatever situation you find yourself in.
So, while those chatty, colloquial expressions are like your favorite comfy sweater – wonderful and indispensable for everyday life – formal writing requires a different wardrobe. It's about presenting yourself and your ideas in the most effective and appropriate way for the context. And that, my friends, is a pretty neat trick to have up your sleeve. Keep practicing, keep writing, and remember that every word you choose is a brushstroke on the canvas of your message. Go forth and write with flair, and a touch of formal sophistication!
