a slang term for a cop... feel free to use it.
jay leno just drove past we better get out of here
by kieranao April 28, 2010
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When a person's head is much fatter or larger than expected from the rest of their body. Often, victims will have a perfectly thin or average body with a very large head, or a round face despite no other weight problem. The syndrome has been known to affect both men and women of all ages. There are only two known cures: Reaching extreme obesity to offset the effects of the syndrome, or self-decapitation. The latter may kill you, but the syndrome dies as well.
Has been known to affect:
Jay Leno (Tonight Show host and comedian)
Aaron Eckhart (Actor "Thank you for smoking"
David Gilmour (Pink Floyd's legendary guitarist and singer)
Donald Trump (Billionaire real estate mogul)
Garry Shandling (Comedian "The Larry Sanders Show")
Jason Bateman (Actor "Arrested Development)
Barry Bonds (Home run king and likely steroid user)
Bruce Willis (actor "Pulp Fiction)
"You know he's only 180 pounds?"
"Really? But his head's so fat!"
"Yeah, he's got a major case of Jay Leno Syndrome."
by Jesse Crall February 17, 2008
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- verb (infinitive)

1) to steal something that you originally gave up from the person to which you gave it, usually in a clandestine and unjust manner (refers to the 2010 "Tonight Show" controversy).

2) to come out of retirement when in reality, no one wants you back See also: "to pull a Brett Farve"
"Definition 1" Example:

Joey quit the baseball team and was replaced by Brandon. However, Joey snuck drugs into Brandon's locker, got Brandon kicked off, and regained his spot on the team. Joey just had to pull a Jay Leno on us.

"Definition 2" Example:

Our bitch of a computer keyboarding teacher had to pull a Jay Leno when she retired in 2009 and came back in 2010 when she realized that she had nothing better to do in life.
by Spoofsmanship April 20, 2010
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The act of eating a girl out while she shits on your chin, said shit will stick to your chin making it seem larger like Jay Leno's Chin.
Bratcher- Man i was tasting some cunt nectar from the goregous girl this morning and she shit on my chin! The worst part is when i backed away it stuck to my chin!

Tyler- Man thats called "The Dirty Jay Leno!"
by Tyler1994 March 19, 2011
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Giving a chance to someone but later taking it back just because.
Guy #1: yo do you think I can be the president of the club next year?
Guy #2: fo sho brah
Guy #1: cool!

-1 Month Later-

Guy #2: I want my spot back biatch
Guy #1: You just pulled a Jay Leno -_-
by Alapongtai January 20, 2010
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1. a burger that is offered when jay leno runs for president
mumbles went to burger king and asked for the jay leno for presidential burger

mumbles also asked for the conan o'brien burger too
by tree trunk slim August 5, 2010
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