untick 

Remove the tick from a check box.

In Internet Explorer, go to the File menu and untick Work Offline.

untick by Jaromba June 25, 2005

untick 

To rescind a ticking

when I realised I had made a mistake voting online I unticked the box I had ticked

untick by Oliver Holmes June 26, 2005

untuck 

Expression used by drag queens to describe the act of detaching/unwind their genitals that were hidden between their legs to give the illusion of a more feminine look. Often held in place with duct tape or tight underwear.

"While you untuck in the Interior Illusions lounge, the judges & I will deliberate." RuPaul

untuck by hellcatspangled October 18, 2017

Untuckle 

- Verb
- To turn an inside out piece of clothing so that it is right side out

Last night I got home so late that I just ripped my jeans off and threw them onto the floor inside out. Now I need to untuckle my jeans before I can wear them again.

Untuckle by hazelnut3 March 25, 2022

Untuck 

This was a word created by Instagram Soam page “@NateClix”
When you say Untuck you are telling someone to pull up

Shawn: Oh I heard you was talking shit what’s good?
Nate: Oh word? Untuck nigga and let’s solve this issue

Untuck by Nate Clip July 15, 2019

Unpickupagainable 

The opposite of "unputdownable". Refers to a book, usually highly regarded by others, that you can read only a small portion of, before putting it down: never to be touched again.

Ref:
http://www.multiverse.org/fora/showthread.php?t=8385

"How did you like Pyncheon's 'Gravity's Rainbow'"?
"Totally unpickupagainable"

Unpickupagainable by UncleDes August 14, 2008

unstick 

Verb; To change position or shift slightly in order to free your balls from the side of your leg.

"wait up, gimme a second to unstick."
"I have to unstick every couple of minutes in this heat; the humidity is turning my legs into duct tape."

unstick by JWAYNE May 22, 2006