Definitions by Kenny Payne, Nathan Rivas

lshtmicoomnaaridnu 

acronym for "Laughing so hard that milk is coming out of my nose at a rate i do not understand" commonly used to describe something that is extremely funny

Nathan: OMFG did you see that dudes bitch tits?
Kenny: Yeah dude i was totally lshtmicoomnaaridnu

lshtmicoomnaaridnu by Kenny Payne, Nathan Rivas April 10, 2008