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2.
Acronym for "Suck My Nigger Dick"

Comes from the root word, smd.
Jon knows how to smnd very well.
Jonathan smnd NOW!
Smnd like a king.
Shuck muh niggierdiack bietch!
Dude, stfu and just smnd...
Nty? well idc nub, get on your knees NOW.
by [-Stephen-] October 21, 2007
 
1.
the girl's version of smd, smnd means "suck my nonexistant dick"
girl 1: ugh you're such a slut! you slept with him on your first date!
girl 2: no i didn't, where did you hear that?
girl 1: he's telling everyone that will listen.
girl 2: well he can smnd, cause i didn't do anything with him last night
by LoveTMB888 July 15, 2011