lmho

laughing my heiny off; an Internet abbreviation used to express much laughter

lmho is typically used much less frequently than lmao and lmbo. These two are, for the most part, used much more often.
Person A: They should make a vinyl record of history.
Person B: Really? What would be on it?
Person A: I'm not sure. But it would go at 100 revolutions per minute! *Rimshot*
Person B: LMHO!
by Indog March 14, 2005
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