shark thumb

Shark Thumb.
The sexual act of placing you little finger (pinky) inside your partners anus (butt), while keeping all other fingers tucked in except the thumb that will stand proud and looks like a shark fin just slightly cresting the bottom of your partners posterior (butt) as they lay on their front.

During foreplay Sam Shark Thumb'ed meredith last night, meredith giggled as she looked over her shoulder and saw the shark fin (Sam's thumb).

by Samqwell December 30, 2019

bear thumb

it’s when a really hairy gay dude thumbs your asshole without clipping his finger nails.

John: Dude I think my ass is bleeding
Mitch: Why?
John: I got bear thumbed last night

by -/:;()$&@“ November 14, 2017

Thumb swoop

To try to sneakily give a girl the shocker.

Last night I hit my girl with the thumb swoop.

by Nutsack93 October 12, 2023

Kentucky thumb

To shove thy thumb into bleeding hole to stop bleeding

My gun exploded so I had to Kentucky thumb my neck

by Daddy332769 May 20, 2021

thumb exercises

The lack of exercise caused by being on a portable game device or smart phone for extended periods of time. Typically Apple or Blackberry users

You're looking a bit weighty. Have you been doing any exercise?

...Only thumb exercises

by Cyberwulf July 18, 2012

Thumb's up

While popularly used as the term for approval (thumb's down for disapproval ) Not many know that in rap or in Fighting word's thumb's up means safety off due to the motion of taking the safety off is putting your thumb's up.

Man, I jumped out the car and went thumb's up real quick. Bout to be blood in these street's.

by AllFatherOfFighting October 21, 2018

thumb-schmooze

To text for the purpose of social communication; from schmooze, Yiddish meaning to chat, to have an informal conversation; "thumb" is a reference to the use of thumbs to text on a mobile phone

I'll be in meetings all week, but we'll thumb-schmooze every day until we can get together on the weekend.

by Liz141 April 21, 2017