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1. clincher
A turd that will not relinquish its grasp on your anus, forcing you to clinch your asscheeks together in order to pinch it off.
"That shit just wouldn't let go; it was a real clincher."
by deek Mar 29, 2003 add a video
2. Clincher
The involuntary long term contraction of your O-ring after being kicked really hard. Similar to an asshole cramp.
Billy kicked me square in the asshole and gave me a 2 minute clincher.
3. Clincher
A faggot who clinches their butt cheeks together while procrasterbating.
Jestin is sure a clincher.
4. clincher
Slang term for a vagina.
"Man did you see that girl's clincher?"
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