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When you get judged by the age you are. Mostly young or old people.
" Do you want to hang out with Sam?"
"No he's 12."
"Why not?"
"He's going to ruin it for us!"
"Don't be ageist."
Ageist by Black Brightness June 30, 2016
Related Words

Normal summon aleister

This term is typically used to establish communism. But it also means that whoever your playing yugioh with is not skilled and chose this deck because they suck at the game.
Dave: normal summon aleister?
David: why do you play this dogwater deck?
Dave: activate fusion destiny?
Short for Awesomeness Fest which is an annual entrepreneurship and personal growth event put on every year by the company Mindvalley. The event is non-profit and community run and develops a very loyal following with thousands applying for limited tickets. Verb: Afester, someone who attends Awesomeness Fest.
Shawn and Lisa are amazing Afesters who attend Afest every year.
Afest by Afester1 December 25, 2012

aleistar black 

A badass professional wrestler that has amazing theme music and a road house kick called black mass that makes Peter Griffin and Patrick Swayze shed a tear.
Hey Adam Cole and Ricochet are great but aleistar black is probably gonna make you think different.
aleistar black by StickyMilk January 18, 2018
Being ageist by discriminating someone because of their age.
"Everything what young people do, is sit in front of a computer and be lazy. Y'all would die if a world war would happen."

"Grandpa, please stop being ageist and judging my whole existence and everything I do, only by my age."

or

"Oi, I'm not putting my life into this lil' brats hands!"

"Sir, please stop being ageist. This is your surgeon, trying to save your life..."
Ageist by Gen69 February 9, 2021
A person who discrimiates based on age..usually an old dude or a dumb blonde
C: "Yo, check out I pierced my ear"
A: "Eww, you are old and that looks gay"
C: "Dude, you are such an ageist"
ageist by R May 13, 2005
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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