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S.B.K.

S.B.K. is short for Shit brown kryptonite, most commonly associated with ones significant other.
unfortunatly that other is not too considerate of the individuals feelings and often ends up destroying them from the inside.
Also shit brown is the combonation of both the colors red and green, like the two types of kryptonite, meaning that this significant other would empower you beyond your regular human capabilities, almost like an adreneline rush, but he/she also has the ability to control you, and destroy you, and usually does.
You do all that you can to have your S.B.K, but your S.B.K doesnt want you like you want them.
It is your ultimate demise disguise as the one you love.
guy 1: dude i just came from my S.B.K. home.
guy 2: are you alright man
guy 1: *collapses on ground and suffers breakdown after breaking down a concrete wall with his own brute force*
guy 2: dammit thats the ninth time this month, get over her.
guy 1: immposible.
by jabs excel April 29, 2009
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S.B.P.

Sperm Back-up Problems. The male version of PMS which explains why a man is in a foul mood, secondary to his back up of sperm from not getting off lately.
Greg sure is being a jerk today, he must be suffering from S.B.P., maybe Sally stopped putting out.
by SaucyKris September 6, 2007
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Related Words
s.b.e s-bomb s.b.f.l S&B S-Block s/b s bag S'blessy S.B.E.M S-ball

S.B.A.

Super Badass, When one is so badass, that they are super
see:B.A.
"Wow!, did u see Billy Bob fight that lion"

"ya, hes super badass(S.B.A.)
by cwierenga April 25, 2008
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S.B.A.

Simultaneous Brainwave Activity.
It is when two or more people are able to know what the other is thinking. It is a phenomenon that happens rarely.
We just had a S.B.A. moment when we both wanted KFC.
by rurucachoo. March 22, 2009
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s.b.c.t.

An acronym meaning Stryker Brigade Combat Team (US Army).

Also, the same acronym (which may have a different meaning than the above) that appeared at the end of the JeanBenet Ramsey ransom letter, which has been connected to suspect John Mark Karr in his classmates yearbooks almost 20 years earlier.
Give me money etc etc etc.

Signed,

John Mark Karr

S.B.C.T.
by matthew mcleodd August 18, 2006
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s.b.f.l

crystal and sheena are s.b.f.l; yo you know im hella thirsty. :D
by crystal & sheena January 10, 2008
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S-B Theory

Sperm Build-up Theory: A girl with a really nice ass, starts dating some guy who is clearly tagging her, and her ass gets much larger, while everything else stays proportionate.
Jessica follows the S-B theory to a tee! She used to be smokin', but since she started dating Mark her ass has become huge! Must be sperm build-up!
by JMSMD September 25, 2006
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