poml
IM lingo. It is abbreviated for Peeing On Myself Laughing.
Alyssa: That is so funny. tahaha. I'm POMLing!
Crystal: Wow, that is funny. I'm POMLing too!
Crystal: Wow, that is funny. I'm POMLing too!
POML
Peeing on myself laughing. A way of expressing that something is funny enough to cause incontinence.
That story about your run-in with the Mexican police had me POML.