look up any word, like swoll:
 
1.
laughed so hard i farted.
lshif, to be used like lol, and lmao.
by twinkie deluxe, November 09, 2009
 
2.
AN ACRONYM MEANING LAUGHING SO HARD I FARTED. A NEW LOL, LMAO OR CTFU.
THAT EPISODE OF THREE AND A HALF MEN WAS SO FUNNY. I LSHIF!!!!
by DaBestMimi January 19, 2011