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A date or 'outing' consisting of three people of the same gender. The date or 'outing' must consist of hilarious, scandalous, sexual or illegal activities in order to maintaine the coolness factor of the Tridate.

The group must consist of rather attractive people, or at least reach an "7 out of 10" on the hotness scale.

The Tridate travels in a pack, dressed sharply or boldly, letting no one ruin their evening or fun.
Did you see those three hot chicks getting kicked out of Victoria's Secret? They must have been on a Tridate!
by weingart February 19, 2012
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