SMBBD , is a derivative or more detailed vesion of the acronym SMD - Suck My Dick. SMBBD means Suck My Big Black Dick.
Annoying girl : Hey Jason buy me blah blah blah blah I am a high maintenance chick...

Jason: Wow SMBBD! i do not care if you're high maintenance or not!
by Never Broken April 01, 2010

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