$MO means Scam Mafia Official and or Stack Money Only. It is a known group of vandal hackers, ddosers, doxers, and scammers.
“hey have you heard of $MO before? I saw em’ on the news.”

“yeah, they stole my walking fishies credit card info.”
by wandabuchen093 March 20, 2021
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It is like dimsim but only a thousand times tastier it is dipped in delicious sauce and eaten. Main momo's are chicken and buff.
chicken Mo mosare so nice!
by nepalyz_urbdictinary June 19, 2006
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Another way of saying "Moron".
I can't believe you screwed that up! Nice job, Mo Mo!
by Adam Cecchini January 03, 2006
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