Top Definition
It is a new variation on the commonly used lmao in msn messaging. It stands for 'Laugh My Tight Toosh Off'. It is often accompanied with the tongue bearing smiley emoticon in an msn conversation and follows a humorous remark.
"Lmtto. That's the funniest thing i've ever heard."
#lmao #lol #lmfao #haha #funny #hilarious #humorous
by Jim June 17, 2006
7 Words related to Lmtto
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