1 definition by k12k23s11

Top Definition
CTM stands for Chuckle to myself. Used when the joke your friend made is not LOL-worthy because you didn't actually really laugh out loud.
Friend: Did you see what she was wearing?
Friend 2: CTM, she looks like a clown.

Friend:Dude, what religion is my religion?
Friend 2: CTM, are you drunk?
by k12k23s11 November 17, 2011

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