2 definitions by whydoesdonaldduckwherepantswhe

Cmao stands for crying my ass off. One would use this term when they are either so sad it's funny or simply crying of laughter.
Caroline: hey Kat, did you see your grade on that chem test?

Kat: yeah, cmao
by whydoesdonaldduckwherepantswhe November 6, 2017
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short for chemistry also known as the devil's creation.
Caroline: hey Kat, what do you have next?

kat: hell.

Caroline: oh, chem
by whydoesdonaldduckwherepantswhe November 6, 2017
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