Top Definition
crying my ass off.

used just like lmao is used to abriviate laughing my ass off
1: "Sup 2??"
2: "Nuthin Much, cmao"
1: "Wat Happened??"
2: "I Got Dumped ="
by sum real shit December 10, 2007
"Cramming my ass off"

Pronunciation: "see-em-ay-oh"
Student A: What you doing mate?
Student B: CMAO
Student A: hehe, don't cram too hard.....
Student B: I've never liked you Student A.
by Mash2nv September 15, 2014
Crying my ass off
I'm in so much pain that I feel like cmao
by tatsujingosuto March 26, 2009

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