For gay males: A man places his penis against another man's penis and has either party or a third party hold their hand in the form of a 'C' and jerk off both male organs simultaneously.
I walked in on my gay brother c-clamping his buddy and I left the room before I could find out who busted first.
by justiz33 June 16, 2010

by Isabella the Great October 2, 2013

a sexual fingering techneque. the index and middle fingers are out, and curved. so is the thumb. they are curved to make a "C shape." the thumb is placed in the vagina, the index and middle fingers are placed in the anus. after insertion, much pressure is applied.
by BOWURZ April 8, 2005

by discodavemin April 28, 2011

by Str8Clamps July 24, 2016

by dirtycracker77 April 1, 2009

A training technique in golf. If a person's head comes up too much during their swing and it is adversely affecting their shot, a clamp can be hung around their neck and attatched to their groin so they will have incentive not to pull their head up during a shot.
by gottygear August 19, 2009
