A combination between control, alter, and delete. (CTRL+ALT+DEL) Very useful when a shit computer is wasting too much time, or if you have an unresponsive program.
Also very useful if your parents are walking through the door and your computer freezes while you're looking at pron.
person 1: omfgzorz! my comp is so damn slow and i cant X out of anything!!
person 2: Dude relax, just traltdel it!
person 1: omfgz thanks!