smb 

Formerly "Screaming Monkey Boner". Now "Screaming Mechanical Brain." - A Minneapolis, Minnesota based metal band. They are pretty good.

Did you go to the SMB concert yesterday?

smb by bobaluya April 25, 2005

SMB 

Shaking My Brain

SMB is like the other term Shaking My Head(SMH)as if you're dissapointed from somethin somebody says or does so you shake your head

SMB by ghettodoll January 19, 2011

smb 

(suck my balls) as in (lick my testicals) or (give my testacles pleasure) or (screw u)

Swen89: i dont like u
Justsex89: smb
Swen89: huh?
Justsex89: (suck my balls)
Swen89: oh ok..

smb by J Train November 25, 2004

SMB 

Shakin' My Bed (self explanatory)

i'm gona be smb w. my boyfriend so don't bother me!

SMB by Nsalsog November 3, 2010

SMB 

Spartan Marching Band

Damn, the SMB looks and sounds GREAT today! Must be another crisp fall Saturday afternoon!

SMB by Academic Type January 23, 2005

smb 

acronym for shaking my boobs. often used instead of the norm smh for shaking my head while textin/IM'n

"i jus got a D+ on my paper!!! Time to treat myself!"
"smb"

smb by GoBooonyYeaDatsMyBoony September 29, 2009

SMB 

smoke mad blunts.

person 1 "who wants to smb and watch the lunar eclipse tonight?!"
person 2 "im down!"

SMB by badbitchhhhhhhhhhhh December 22, 2010