Shit your pants.
Better than LOL
. Can even take the place of SMH
. This is used to describe when something is just so DAMN funny (or disgusting), that you just can't help but well...you know.
1. "OH MY GOD! tosh.0
is fucking hilarious man! You gotta see it; I swear you'll practically SYP everytime!"
2. "Dude, you know that girl you hooked up with last night when you were shitfaced? Well, she's ugly as fuck...you'll prolly SYP when you see her next."