What is Ltromao?
Acronym for: "Laughing The Rim Of My Anus Off"
As in a response to a joke:
Q: Whats invisible and smells like carrots?
A: Rabit Farts!
Reply: LTROMAO!
See laughing, the, rim, of, my, anus, off, lmao, omfg, lmfao, Coitus Maximus