2
It means sex, used often on radio stations so they don't get fined by the FCC. Other coralarry terms are grenis and grorgasm.
It's crazy how our privates get us in trouble and we all obsess about grex. It's just a grenis and a virginia.
by Leif May 24, 2005
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3
An unskilled Mexican of Maltese descent who relies strictly on luck rather than skill.
Fuckin' Grex won the fantasy league again this year.
by Candy Andy April 22, 2018
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