Today I got high and thought of a new slang "lmaomg" during when I was laughing hard for no reason. Therefor I decided to be the first person to define it on urbandictionary.com.
However, I found in fact I was already the 14th wannabe...
Then I started laughing hard for a reason...
Timmy: Ha ha ha ha ha ha ha ha that's awesome, so awesome I can't even describe the feelings I'm going through!
Jerry: Well Timmy, that's obviously a "lmaorgasm".