L.l.a.f.
L. l. a. f. is when you laugh so hard you look like a drunk fool who just got hit in the face with a muffin. It happens when you're smashed, wasted, or just plain stupid.
My cousin laughed so hard during the movie he spilled his soda on my mom.
I laughed like a fuck when my dog tried to eat my homework.
At the party, my friend laughed so loud the DJ stopped the music.