short for Suck My Big Black Cock
guy: that's not fair!

girl: OH YEA 11 KILLSTREAK!

guy: wooow, you're soo hacking..

girl: no i'm not, SMBBC
by yomama69me February 12, 2011
shaking my bbc. for when just shaking your head isnt enough
Slutty girl: I just banged 4 guys at once.
Guy: Smbbc...
by Saflmaster August 30, 2010

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