Burning thumb

When you leave your thumb stick out as if you are hitchhiking while fisting another's anus

Hey Josh, you gonna go in smooth or give me another burning thumb

by Pierced brosnan March 6, 2025

Kentucky Thumb

When you a girl is riding cowgirl and you sneakily put your thumb up her ass.

Brandon: "I gave her the Kentucky Thumb last night"
Cody: "You sick fuck"

by Not Guitarist Ryan May 20, 2021

thumb-ass

when you're so deep in someones ass you no longer have opposable thumbs

bro was so thumb-ass'd he couldnt peel a banana.

by cumslider February 1, 2024

Kentucky thumb

The act of, rather than sticking your thumb in her ass while you're fucking her, you pull out, shove it in her ass, and plug her vagina with your thumb

"Brandon, you wouldn't believe it, last night I gave Megan the Kentucky thumb and she liked it"

by Boost_and_chill May 20, 2021

Cum Thumbing

Verb

1. To merge two magazine pages together as one by means of bodily fluids.

"The fact that pages 136 & 137 were stuck together in the Hustler magazine at the sperm bank was an obvious indication that someone had been there cum thumbing it previously."

by billebllunt December 31, 2013

troll thumbs

A person who's thumbs are wider than long, which is weird.

Kristen, wth, you have .. OMG TROLL THUMBS

by redman&kronic January 26, 2009

Black Thumb

One that constantly kills indoor plants. The opposite of having a green thumb.

Ann killed all her house plants. She has a black thumb.

by Bk102886 November 14, 2020