To laugh so hard that one ejaculates, usually all over the keyboard.
"LIEK, ZOMFG TAHT WAS HILARIOUS LOLLERBATE BBQ 1111"
by Noosh August 28, 2005
1 more definition
A funny masterbation, replaces the LOL in a sentence.
Man you guys are sexy, LOLLERBATE!#@@#!
by Pierre-Luc Roussy October 03, 2004