Top Definition
ROFLTSO is an internet acronmym for Rolling On Floor Laughing, Tongue Sticking Out. It's an overjoy laugh while tongue is sticking out, teasing, making fun of or joking around.
A. Hellloads! Ann is a real slut.
B. ROFLTSO, "sluts got talent" :P
by primaverabebe January 05, 2011

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