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Someone's ability to sense if someone is gay or not when it's not obvious.
Q) What is your gaydar telling you about that waiter.
A) It's pinging loudly hey.
by Galawh May 27, 2019
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Jun 14 Word of the Day
Referring to women who are sexually or romantically attracted to other women. Applies to both lesbians and bisexual women, as it is only the same-sex attraction that matters, not any other attractions the women may have.

Originates from the Greek poet Sappho, a bisexual woman from the Isle of Lesbos, from which we get the term lesbian.
The sapphic women greatly enjoyed each others company.
by whatisdead June 25, 2015
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The ability/gift of being able to detect homosexuality in other people.
Woah! Look at that guy. My gaydar is going crazy!
by Bungalow Bill December 05, 2001
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the ability to sense--without being told and without obvious visual clues--that someone is gay.
Female A: He may be fine as frog hair but you won't get anywhere with him because he's gay.
Female B: How do you know?
Female A: 'Cause I've got GAYDAR!
by Elaine E. July 16, 2008
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A sense that allows for someone to detect homosexuality in another
That one registered a blip on my gaydar!
by Brenna August 08, 2003
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Extra sensory perception that allows one to immediatey know who is a homosexual.
Origin: The combination of the words "gay" and "radar".
Harry set off my gay-dar.
by Allora December 02, 2003
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The gift of being able to sense the homosexual vibe.

Extended form : Gay Radar
He's flaming!--Told you there's no stealthing my Gaydar!
by ~SS August 07, 2005
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