Definitions by Andrew1227

JMSL 

Jizzing Myself Laughing. It's like pissing myself laughing, but instead of pissing you jizz all over yourself.

Guy 1: Dude, that joke Sarah told last night made me PMSL.
Guy 2: Really? It made me JMSL, I had to go home and change pants after that.

JMSL by Andrew1227 August 19, 2012