Fonzie thumb

When someone slips a thumb into your butthole by accident or on purpose causing you to yell, "AYE!".

"Aye!" Get your thumb away from my asshole. You and your damn Fonzie thumb.

by HA_13 October 01, 2015

Thumb-war

When you play thumb war, but with your toes.

guy 1: dude can we play thumb-war?
guy 2: yeah gimme your hand
guy 1: nonono its with our feet

by Sidewhore January 31, 2018

Kentucky Thumb

When you stick your thumb in something to restrict blood flow.

My girl was on her period so I gave her a Kentucky thumb.

by Blakerblock May 21, 2021

kentucky thumb

The sexual act of inserting one's thumb into an opening to minimize the outpouring of bodily fluids

She reached climax and I gave her the Kentucky Thumb so she didn't mess the sheets

by Chappers88 May 20, 2021

thumbs of understandring

The action you make when a witch gives you a complicated instruction.

"does that sound good?"
"thumbs of understandring"

by wheeeeeeeewheeeeeeee May 07, 2021

thumb wrestler

A "thumb wrestler" is a person who acts tough through text message. Using their thumbs to input words and threaten or intimidate other people.

I was on Instagram yesterday and I added a comment to someone's pic when all of a sudden this "Thumb Wrestler" got upset and tried to pick a fight with me.

by MrSilkySensations August 21, 2014

fish thumb

Fish Thumb
The process of insterting one's thumb(s) into a female's vagina (referring to the smell of the said thumb afterwards).

Me: Smell my thumb
Friend: Why?
Me: Just do it
Friend: Err smells like sex and fish
Me: Ye I just fish thumbed your mum

by Bigfatbozwithbigfatballbag January 12, 2019