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

Thumb Bombing

To retroactively "like" or "thumb" a large amount of a persons facebook posts and/or pictures.

That new guy I met is such a facebook stalker. He's been thumb bombing my page for the last week.

by Oyeboman May 14, 2011

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

Grindr thumb

The arthritic fatigue you experience in your thumb after spending too much time scrolling up and down on Grindr.

Damn, I just wasted two hours refreshing Grindr and can barely move my thumb now - got a case of that Grindr thumb!

by C Burnett July 25, 2014

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 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

Thumb Butted

When you stick your thumb in a girls butt during sex. You've gotta love it like it's your last.

Person 1: Yooo how was your night?? Did that girl sleep over?
Person 2: Ya lmao I thumb butted I think I love her.

by BigKidsAreLarge November 8, 2016