someone who either acts like a pig or someone who has a little secret plan up their sleeve or someone who is keeping a secret... shhh......
Ella: she looks like she is keeping a secret... and she is being such a pig!

Lucy: yh... she does, she is such an onk
by eeerrrrrr smella??? January 23, 2009
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slang word for fart or break wind
Have you just onked? I think I am gonna onk. It stinks in here someone has just onked.
by Al Castle September 22, 2007
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When someone leaves a lone olive on the table and walks away.
Damn, that guy really just onked.
by TheBDG September 28, 2018
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A Danish slang word for stupid motherfucker

Mostly used when people do dumb shit
You're an onk
by SpockFloki January 31, 2019
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The word onk can mean:

1) A person who smells bad

Or

2) A secret plan
Lucy: Corrr that guy stinks!

Ella: What an onk!
by LittleRave January 22, 2009
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When a man cums over another man's genitals, especially the head of the other guy's penis
The guys and I went to the beat for a spot of onking
by hotstrumpet March 9, 2015
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