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1.
What is said upon finding your target has been marked out. Derived from an X on pirate treasure maps. The phrase was put into common usage by the British army, who performed executions by marking a piece of paper with a black x and positioning it on the heart of someone sentenced to death.


The acting officer would say "X marks the spot" and the firing squad would shoot the x.
X marks the spot, so let's go and dig up treasure.
by Kung-Fu Jesus April 30, 2004
 
2.
This is the exact location (from the act of using an x to mark a location on a map)
I pointed to the location on the map and told the recruits "x marks the spot".
by Light Joker October 24, 2005
 
3.
You let cookies and cream ice cream melt in your mouth, reserving a large cookie piece. Each person in the circle sticks out their tongues and the person with the largest cookie piece, or x marks the spot, wins the round.
Kelly: Your cookie is bigger than mine.
Shannon: X marks the spot!
by sarah ridiculous October 01, 2007
 
4.
This is when you bury some poor soul in the sand usually at the beach with their face exposed then you drop your drawers and you take a huge shit on their face.
Billy: Did you see that?
John: Huh?
Billy: That kid had shit all over his face.
John: Oh, that's an "x marks the spot."
by ericpimp October 15, 2006
 
5.
a sexual position where an individual lays on the ground and makes an 'x' with his or her body.

then inserts each of his or her hands and feet into four consenting women.
coque was thrilled to learn that elaine and her three friends were interested in a little game of x marks the spot.
by j to the bizzle November 10, 2006
 
6.
shaving ones pubes like an X
x marks the spot!
by meow April 29, 2004