1 definition by JJadeNM

Top Definition
SM
(SMiling Mentally)
We ALL know that even though what your friend said was 'sooo' funny and hilarious you want to say lol, lmfao, lmao, lmbo, or in retarded cases ROTFLMAO but here is the REAL joke was it really so funny that you were LITERALLY laughing and rolling your INSEPARABLE "butt" off? NO. So i created a more SMARTER way of saying "lol."
- Laughing without actual outbursts.
- Especially in a quiet place maybe church or something.
-Today i farted in class, everybody ran out when they smelled it
-SM

-That joke was real funny SM im at an assembly

-What you said wasnt funny enough to laugh out loud but i dont want you to feel bad SM
by JJadeNM January 22, 2010
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