Ctrl+Z 

The most used key combination to undo the previous action the user has made.

The use of a key combination to easilly perform a command was first introduced by Macintosh, using the Q, Z, X, C and V buttons, in combination with the Command key, for the actions quit, undo, cut, copy and paste (in that order).

It was passed down to other Operating Systems, but with other operating systems using other keyboards the Ctrl (Control) key was used, since they didn't have the same control key as a Macintish keyboard does.


Also see "Inside Macintosh. Volume 1" Chapter I page 53, for the first ever mention and explanation of this command.

You see a person working on an image in Photoshop "Oh, crap, I made a mistake! Undo!" The person presses Ctrl+Z to unto his mistake
(NOTE: In Photoshop Ctrl+Z undoes all recent actions made with the tool selected, Ctrl+Alt+Z however undoes the last action only, yet can be pressed repeatedly to undo several previous actions)

Ctrl+Z by AARST July 30, 2004

Ctrl+Z 

A desperate attempt to fix a borked situation.

A: You told her she was a dumb cow with a socially irresponsible haircut?
B: Yeah, I spent the rest of the weekend Ctrl+Z'ing that shit from seventeen directions.

Ctrl+Z by sv-1 September 6, 2007

ctrl+z dinner 

The act of vomiting. Ctrl+z means undo. Vomiting dinner or the act of purging food is mostly done by people with bulimia. This phrase originated from the eating disorder community.

I ate a lot today. Time to ctrl+z dinner.

Stop using ed language. Instead of saying bulimia, say ctrl+z dinner instead.

ctrl+z dinner by rei0000 October 7, 2020

ctrl+F+U 

From the web series Red vs Blue, Caboose's keyboard shortcut at command for every time he team kills.

Washington: "I told them Caboose did it. Apparently they already have a shortcut on their keyboard for recording his team kills"
Caboose: "Ctrl+F+U"

ctrl+F+U by confusedfish January 7, 2010

ctrl+shift+w 

A keyboard shortcut built into the Google Chrome browser (and some others) which, when invoked, closes all tabs in the focused window. Used to instantly erase visual evidence of objectionable activity.

I was browsing the Web for adult material when my mother walked into my room. Luckily I used ctrl+shift+w to close the incognito window I was using and she didn't suspect a thing.

ctrl+shift+w by Anonymous Alligator May 22, 2018

Ctrl+Alt+Del 

The keys u press when ur shitty windows computer fucks up and u need to restart.

My shitty windows computer fucked up fo the 5th time in 10 min.

Ctrl+Alt+Del by cartman5000 July 26, 2004

Ctrl+Alt+Delete

A phrase that when said by a friend makes you obligated to finish your drink as fast as possible. Also used to describe someone drinking a drink super fast.

I just saw Connor Ctrl+Alt+Delete that beer so fast.

Hey bro, Ctrl+Alt+Delete

Ctrl+Alt+Delete by Cmanator April 15, 2019