Gay sensory perception a.k.a. gaydar. The ability of gay people to determine others' gayness without discussion or apparent evidence of it. G.S.P. often is set off by eye contact.
The new chick in the office totally set off my G.S.P. When we looked at each other her eyes were like, "Yes, I am."
by Capt. Jack Sparrow February 25, 2004
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