Top Definition
Having sex on the deadman's land between two nations, where the man is in one country and the woman is in the other. Ideally the sex is done in lotus, or an otherwise symmetrical position, so that neither person needs a passport to commit the act.
Andra and I totally did the horizontal bordercross last night, and the feds couldn't do anything! So hot!
by notfarg May 30, 2013

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