The condition when an entire side of your thumb is covered in ink from sliding it to smudge your name off an official deportation document.
by Robert Shame May 8, 2013

The art of inserting ones thumb (thumbs), into a fellow companions anal cavity, while thrusting wildly in an up and down motion. The thumb dumper must be face to face with the thumb dumpie.
Chantel couldn't walk the next day because she had spent the night being thumb dumped by Tim. Tim is an excellent Thumb Dumper
by TheAE86ForTheWin October 30, 2008

The action of putting thumb into butt hole before sitting. America's favorite past time for when you are bored and no plans.
by UmmWhatchaSay March 3, 2018

Hey Planky I'm getting chased by a gang of triads with samurai swords help me man
Replys with a thumbs up... The thumb cunt
Replys with a thumbs up... The thumb cunt
by baconsarnie June 11, 2014

Commonly used term orginating in the early 1900s, when it was legal for men to beat their wives, as long as they used a stick no wider than their thumb.
Rule of thumb? Can't do too much damage with that thing, can we? Perhaps it should have been the Rule of Wrist. - The Boondock Saints
by YousaywhyIsaywhynot October 23, 2006

by carnuga February 27, 2009

by 29A April 28, 2005
