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4.
Conspiracy-theorists' dream opportunity to speculate over the reasons JFK was killed.
Oh, yeah, I have a theory on the grassy knoll and area 51, it all starts in camp SHUT-THE-FUCK-UP-I-DON'T-CARE.
by Kung-Fu Jesus April 16, 2004
 
1.
A metaphor and a source of irony when referring to a suspicion, conspiracy, or a cover-up of some type.
You'll find all your answers on the grassy knoll
by scumm November 28, 2005
 
2.
where the pubic bone rises onan unshaven snatch
"I'm going to plant a conspirator in Cheryl's grassy knoll"
by Ferguson June 24, 2005
 
3.
n. Representing the slightly raised grass area outside of Stanford Hall at Villanova. A great area in the heat of the day to go box (see 'box') hunting.
So are we gonna look for box on the grassy knoll today or what?

Look at all of that box on the grassy knoll.
by Corey Matthews April 11, 2005
 
5.
The hang out spot for the kids of Clone High High School.

Frequent visitors: JFK, Cleopatra, Abe Lincoln, Joan of Arc, Ghandi.
I wish I went to Clone High High School so I could hang out at the Grassy Knoll with all the famous clones.
by POMLOVE August 19, 2006
 
6.
another code term for when girls are around. grassy knoll aka a womans vagina.
I'd like to shoot a load on that grassy knoll
by Captain Tanker February 01, 2008
 
7.
The landform from which JFK was shot by a woman.
Today I drank South African soft drink atop a grassy knoll.
by miguel juan October 31, 2005