Top definition
Internal security service in Russia, successor to the KGB's Second Chief Directorate (internal counterintelligence).
The KGB was disbanded into the SVR and the FSB in 1991.
by Dancing with Fire September 03, 2012
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2
Funk Soul Brother
Someone whos soul is closely connected to yours through funk.
"Right about now."
"The FSB."
"Check it out now.
"The FSB."
by Camalach May 27, 2009
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3
russian secret service...the new kgb
fsb, dumbass, get out of the fucking car
by viktor January 13, 2005
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4
Abreviation for fuck stupid bitches

Originated from Webbsteez
Conor: Fuck man FSB!
Connor: I know bro!
by mcsteeez January 09, 2012
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5
Full Speed Baby
It's replacing YOLO as the current trendy word
Living life by a new code.. FSB
by yummymuffintops April 20, 2012
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6
Formerly known as CPU bus speed and system bus. It is the speed at which the CPU communicates with RAM (memory).
by Flamin Homer April 25, 2003
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7
fucking shitty bollocks. generally when things aren't going too well.
person a: everything's just fsb atm. >.<
person b: why whats up?
by Beth Berry March 03, 2007
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