Top Definition
>> 1. The act of contracting one's anal sphincter to cut a log of feces off in mid-defecation.

>> 2. Forcefully preventing ejaculation by squeezing the shaft of the penis.

Man did you see the deuce he dropped? You can even tell where he pinched off.

Pinching off prevented a rather sticky coffee-break facial.
by Ryzarh November 08, 2006

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