A dirty undercarriage on. A man or woman that has taken on some sort of vinegar like smell to it.
What is that smell? Grace hasn't showered in 2 days ...she got some crotch vinegar brewing.
by Finbag March 12, 2017
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When you make your girl squirt enough to fill a jar.
Ferment that shit for a week.

Then you got pussy vinegar, multipurpose!
Fred: Hey mike, this vinegar's pretty tasty on these fries!
Mike: Shit man thats stacey's pussy vinegar from last week!
by Yomamalussyvinegar May 14, 2016
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When sweating heavily a man's scrotum becomes soggy and smells like vinegar.
I'm sweating so much I'm sure I have vinegar bag.
by NSDASTI September 16, 2017
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The pungent, vinegar-scented sweat that builds around the scrotum on a hot day or after physical activity.
What a game! I've got to hit the shower to wash off all of this ballsamic vinegar before my girl friend comes over!
by JohnnyA-list April 21, 2008
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The point during sexual intercourse where a man is irreversibly about to blow his load. The very worst time to have to cease coitus in an emergency.
Shit! I was on the vinegar stroke when Julie's dad burst through the door.
by Busted Hyman July 7, 2006
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The face made in the final seconds before you ejaculate. It looks like someone is holding a cup of vinegar under your nose. The few seconds when you are unable to stop humping your partner even if it means life or death because you are about to bust a nut.
1.Tom was sleeping with a married women. He was sticking it to Mary when her husband kicked in the bedroom door. Tom couldn't run away from Mary's husband because he was making his vinegar face.
2.When Joe was making his vinegar face he looked like a wild donkey getting circumcised.
by sk1979 November 23, 2010
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