1. During Sex, when a guy "comes" on a girls face, and makes her eyes water/cry.
Blake gave Kaycee an onion!
Emily and Krisha like onions.
by ilovefishx November 20, 2010

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Something stupid or ridiculous, usually a statement
Kid: "Hey mom, did you know that 1+1=3?" Mom: "That is the most Onion thing I have ever heard!"

"I can't believe he said that, that was so onion!"
by In Odin we trust January 20, 2017

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The girlfriend of a bikie or a member of a motorcycle gang. Note the similarity to the old English word "ronion", a term of contempt for a woman.
The word comes from Australian slang, but may have originated in the U.K.
The bikie came into the bar with his onion by his side.
by Steven Guy February 07, 2009

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A term people from Brisbane (Queensland, Australia) use to describe a female that has sex with anyone in return for drugs.
"Yeah I've heard about her, she's an onion so steer clear of her"
by skattercrab October 01, 2013

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Onion is a diverse word that can be used to describe many breeds of punks. To name a few Joey Blowouts, Wiggers, Wanna be gangsta's, White trash or any other group that falls in the asshole category. When you see them next time you’ll know, think onion.
"look at these onions, this place has gone to hell" Onion is a diverse word that can be used to describe many breeds of punks.
by Gucci Venichenzo July 10, 2008

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A mild insult for someone,
like calling someone a spoon

or it could be a good thing.
Therefore if someone should say you are a 'good onion' its alll gooood :D
Bob: i forgot my homework again
Gurinda: Lol, you onion



Aaron: Hey, ive made some friends that are nice to me

Kat: Tell you're friends i like them Aaron, they are Good Onions :)
by katerinakalogerakis February 07, 2009

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someone who goes against the consensus of a group, generally used in political or intellectual discussions.
Person 1: "I love this book."
Person 2: "Me too."
Person 3: "It's not that great"
Person 1: "You are the onion of the group!"
by dr g class June 29, 2010

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