should have stayed a thumbnail 

What you say after clicking on a profile photo that scars you for life when seen full size.

I clicked on his profile cuz I thought he was hot. But damn, he's so fugly he should have stayed a thumbnail.

should have stayed a thumbnail by Woofyman February 10, 2022

Thumbelina 

A demure, petite female with fairy like features - pretty, bubbly.

She's a proper little pocket rocket that Thumbelina!

Thumbelina by rampant lion September 9, 2016

thumbing 

The hip new way to indicate you are texting. Matter of fact; all the really cool kids now refer to texting as "thumbing."

Jenny and I were thumbing most of math class today.

(another correct usage would be)
Thumb ya later!

(another correct usage would be)
I will thumb you later.

thumbing by Cyprus Denton Fekks October 1, 2011

thumbing off 

the process of clicking on your own submissions thumbs up button

like jerking off your ego

That idiot spends the whole day on various websites just thumbing off

example 2: every time i check my urbandictionary entries i end up thumbing off

thumbing off by streigh July 23, 2009

ass-thumbing

Ass-thumbing is when you go to the bar and drink Captain and ginger, and then you strategically place your yourself between 2 people and nonchalantly stick your thumb in someone's butt. The goal is not to get caught and to make the person getting ass-thumbed think it was someone else. Ass-thumbing also goes by " doing the Crosby" Ass- thumbing is believed to be a German tradition, and in the States, there is an ass-thumbing group in the mid coast Maine area.

Hey, let's go out to the Myrtle and do some ass-thumbing.

ass-thumbing by Aaron goodwin July 6, 2014

thumbing a softie 

to use one's thumb or finger in an attempt to prop up one's soft, flacid, floppy penis during intercourse

Robbie Houstoun, AKA 'Floppy Robby' is thumbing a softie, but isnae fooling anybody

thumbing a softie by macfear August 23, 2014

Up-Thumbing Self 

The act of up thumbing yourself on your own definition on Urban Dictionary after it was approved.

*Opens e-mail*
*Clicks on Urban Dictionary e-mail*

"Thanks for your definition of Up-Thumbing Self!

Editors reviewed your entry and have decided to publish it on urbandictionary.com.

It should appear on this page in the next few days:
(Link here)

Urban Dictionary"

*Clicks link*
*Thumbs self*

Up-Thumbing Self by PanzyWarfare October 17, 2009