common fixture

One that is regularly found, and likely not to be removed.

He’s a common fixture at the pub, don’t make eye contact or he’ll start telling you longwinded stories.

That character on the the show is a common fixture, I don’t think they’ll kill her off.

by KathyBates November 21, 2021

The Commoner Effect

When you’re a super smart person that hangs out with too many “regular” people and therefore lose your intelligence

“Riya, why did you get a 95 on that history test? Maybe if you didn’t go out to dinner with your commoner friends you could’ve gotten 100.”
^ meanwhile the “commoners” are just other people the same age as you
This is the commoner effect

by da riff April 26, 2024

Commonism

The lack or deterioration of common-sense within an individual.

I was startled when my engine stopped working, even though I knew my check engine light was on it was my commonism to blame for this unsettling situation.

by Kade Devros May 6, 2024

common cents

What one without common sense believes as the meaning... "people who have spare change such as dimes and nickels, common cents"

Alternatively, what one may name a playlist with songs by Common and 50 Cent.

My pockets are full of common cents, more so dimes and nickels than pennies.

by GlazeHer September 30, 2025

Common sense isn't so common

(phrase / life observation / savage truth)

A brutally honest way to say that just because something seems obvious, most people will still find a way to mess it up. Perfect for moments when humanity disappoints you, usually in public or online.

Used when:

Someone does something completely avoidable or facepalm-worthy.

You realize society collectively skipped the “how to adult” manual.

You want to sound smart while judging idiots.

Meaning: Humans often act in ways that defy logic, and that’s on them.

Synonyms: “Apparently, this is optional,” “Logic is rare,” “Humanity, why?”

Examples of contexts in which common sense isn't so common:

Coworker: “I put metal in the microwave.”
You: “Common sense isn’t so common.”

Friend: “I just walked into traffic because I was texting.”
You: “Common sense isn’t so common.”

Internet comment section: literally anything ever.

by Thejocdoc November 11, 2025

Common sense

I instinct knowledge that Dominic Schneider doesn’t have

Dom doesn’t have common sense as he poured the bag of ice and missed the pop machine and went all over the floor

by Max Bellgraph 43 November 19, 2025

Common Dihnominator

When your dih is bigger than a ruler so you whip it out and the math teacher calls you the Common Dihnominator

Damn Trayvon, you're failing Algebra 1, but you sure are the common dihnominator

by kosagui November 24, 2025