When talking about the Urban Dictionary ratings system, the opposite of the thumbs up. Where a thumbs up denotes a good definition and thumbs down denotes a bad one. There aren't many definitions out there whcih don't have at least one thumbs down. Whether or not people actually like a definition, they will give it a thumbs down, because they hate everybody, the world is unfair to them and they like to cut themselves.
by Grammar_Nazi January 28, 2008
I just hit my thumb with a hammer today. This hammer thumb makes me feel like an clutz.
"Have you seen Susie's Hammer Thumb?"
"Ya, they're unusually wide and stumpy!"
"Have you seen Susie's Hammer Thumb?"
"Ya, they're unusually wide and stumpy!"
by ihatepickingnamesout54321 May 11, 2010
by theplayasgala December 01, 2020
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 03, 2018
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 September 16, 2008
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 12, 2014
I put my hand in his pants and was dissapointed to find he was only packing a "Babys Thumb" down there
by Randall Van Strauss October 25, 2010