To remove a program from a computer, usually with the hopes that the computer will performs actions that it once did, or achieve past perceived performance.
Kid: Daddy, can we play Koo Koo Co Co Pops on your computer?
Dad: Um, since I installed Boring Work App on my computer your game doesn't work.
Kid: Can't you just outstall it?
Dad: Um, since I installed Boring Work App on my computer your game doesn't work.
Kid: Can't you just outstall it?
by Roll Here Eggo March 23, 2009