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When straight dudes feel, by virtue of their strong heterosexual presence, that they will bring superior straight vibes to an otherwise perceived-to-be-gay place. Opposite of Gay Up the Place.
Straight Dude #1: Let's go to Club X8@y& tonite.

Straight Dude #2: I'm down for it. We'll straight up the place!

Straight Dude #3: O fosho, that place be gayer than gay.
by sarasplayroom.com March 01, 2010