Vinegar strokes

[Becky]

the pre-orgasmal point of no return for men during the sexual act, where failing to blurt your mess will result in blue balls

[Justin Bieber]

The often odd, varied and bizarre facial expressions a man make at the point when he is is just about to ejaculate. The same sort of faces you would pull if you had just quaffed a pint of vinegar.

[Britney]

the point of no return for a man during sexual intercourse in which he can not stop until he ejaculates, and looks as if someone put a spoon full of vinegar and made him smell it

as seen on the league

[Couch Potatoe]

The final moments prior to when a man orgasms. At this point he can no longer stop himself from ejaculating no matter what happens. He will make a face as though he has just smelled vinegar. It is said that if you peer into a mans eyes during his vinegar strokes you get a glimpse of his soul.

[Britney]

the face a man makes before he cums because it looks like he his smelling vinegar.

[Tina]

An old and very descriptive scouse expression depicting male masturbation.

Like the pouring of vinegar on fish