LSHISMB 

Laugh So Hard I Shit My Britches

Wow, you do a lot of blow!

LSHISMB!

LSHISMB by Marty McFriend June 4, 2005

lshismp 

Laugh So Hard I Shit My Pants

That was so funny ilshismp.

lshismp by Jon February 8, 2004

lshism 

Laugh So Hard I Shit Myself

Danz: OMFG! You just raped my ears! You forcefully shoved info into them which I did not want!
Royal: lshism

lshism by Royal Celebi August 4, 2007

LSHISMGDOMFC 

Laughing so hard I spilled my grape drink on my fried chicken.

Used to imply the stereotype among black people loving grape drinks and fried chicken.

Black Guy 1: Why is 6 afraid of 7?
Black Guy 2: Why?
Black Guy 1: Because 6 is afraid of 7!
Black Guy 2:LSHISMGDOMFC!

LSHISMGDOMFC by Claps with one hand April 18, 2010

LSHISMP 

I laughed so hard I shat my pants.

Kevin: Hey John, the dog just stole my wooden leg.
John: LSHISMP

LSHISMP by LachyGordon May 19, 2005

lshismfp

Computer slang for laughing so hard i shit my fucking pants.

Hannah sent Father Patrick a funny picture via an instant messaging device. Father laughed and then typed lshismfp or laughing so hard i shit my fucking pants.

lshismfp by Patrick Judge October 27, 2004

LSHISM 

laughing so hard I spit mucous

Pete: Dude, that sandwich you're eating looks like a bearded clam.
Dan: LSHISM

LSHISM by Martin McFriend July 4, 2005