Internet forum shorthand for "Show Me You Boobs". A fairly common response utilized in order to keep the discussion light. Particularly prevelant among the regulars of the MySpace News & Politics forums.
The Baroness and Crow were discussing whether or no it was a misconception that women are dependant on men. T replied with "SMYB!"
Acronym for "suck my ebony boner". Can also use the alternate spelling, schmebs. The origin of the word can be traced back to the midwest, or more specifically, Port Huron, MI.
An abbreviation which stands for "Send Your Buddy Some Titties Day", which happens to be every Monday. This most glorious of days is celebrated by, quite literally, sending your buddy some titties whether it be by picture message, email, Facebook, etc..
Bro A- "Dude, why'd you post a bunch of pictures of tits on my Facebook?"
Bro B- "Its SYBSTD man.."
Bro A- "Oh... thanks buddy!"