Top Definition
Something required for a certain advancment or promotion, a certain course.
"As you know, it's a prerequisite to survive 25 battles before being promoted to Captain."
by Colin J. Cole November 11, 2003
1 more definition
The website that asks if you're 18 before viewing adult content online.
"Dude, I tried to go to a porn site, but some prerequi-site popped up."
"What'd you do?"
"I told 'em I was born in 1901. It worked!"
by Iknoana November 19, 2011

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