Top definition
LTTPWNSCO is a text acronym for:

Laughing To The Point Where No Sound Comes Out

It is generally used sarcastically to menace other people's weak jokes, it can also be used to describe something incredibly funny.
(text): wow dude that joke was so great, i was LTTPWNSCO next time try to watch tosh.o before you txt me

OR

(text): i am literally LTTPWNSCO that was gr8 next time tell ur dad to never play russian toilette
by Millenium Falcon April 07, 2011
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