2 definitions by GrendelPrime

More publicly acceptable and FCC-friendly version of S.T.F.U., originally coined by Buckethead on WJRR Radio.
"You slept with your girlfriend's sister and her mom? Shut the front door!"
by GrendelPrime April 27, 2006
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a hill that you mark your territory on (i.e. have sex)
mark: "i just took this girl to mark hill and made her mine. mark is in the x-zone now. feel me?"
by GrendelPrime December 31, 2005
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