Top definition
Jim tried to hide his RB by crossing his legs.
by Anonymous October 28, 2003
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2
-Run Better
Getting slapped across the face with the deck while playing poker, usually no-limit Texas Hold Em, and winning more pots than an average session. In the process tilting other players at the table who aren't winning (Kirk)
nice 2 outer on the river! RB!

he turned a flush against my top set, run better
by Ray Slay June 05, 2017
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3
a rogue boner you receive at unexpected times

a surprise in your pants!
Dani: Josh you've got a huge rb!
Josh: Thanks for announcing it to the world! ::winks::
by DaniKidd November 10, 2007
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4
Rigorous Butt Sex-
1.Intense, mostly pleasurable but possibly painful(for either party) anal sex. Mostly used as a humorous example rather than an enticing possibility.
2.A fierce display of buttsexery
3.also Roast Beef Sandwich(how Arbys got its name)
(word origins attributed to Zeb)
"at first she was scared, but after I showed her how, she's been begging me for the R.B.S.

"You gotta have an ass of steel to handle my R.B.S"

"I thought R.B.S was cool til' the doctor had to sew up mysahara rip-dick"
by Senor lukas July 10, 2008
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5
Reason Boner

Derivitve: NRB; No Reason Boner
"Oh, dude! That chick's so hot. Kevin has such an R.B. right now!"

by jamesporter March 06, 2006
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6
Short for Rat Bastard. Something you would call someone for pulling a shaddy or lame manuever. For example, taking credit for you work at your job.
You are such an RB, I can't believe you ate my last bagel.
by sdlakers March 12, 2010
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7
I found this hottie from RB who blew my socks off!
by RB Fan May 27, 2008
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