One's suspicions for gay people on one's radar.
She's on my gaydar. But there is nothing wrong with lesbians.
by Ereck Flowers August 20, 2017
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My gaydar detects a DDR machine 10 feet from here.
by asschode June 30, 2003
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A unit or device that enables you to detect other gay people around you that are using the same device.

Was an actual device created in the early 1990's.
My Gaydar just beeped. There must be a homo close by.
by Joel Osterman May 31, 2005
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When a gay person can detect that another person is gay just by intuition. Combination of gay and radar.
He used his gaydar to pick out the other gay guys at the party.
by susiektm July 8, 2014
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Slang for the motion sensative radar screen in Halo. Used for any peril warning device when "peril sensative sunglasses" is too verbose.
"I'm throwing gernades at that blip on my gaydar!"
"They are on my gaydar guys!"
"I forgot to watch my gaydar and he p'owned me from behind"
by Gunner Gumby September 28, 2007
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A form of gaydar most commonly, but not always found in persons with ambiguous sexuality or faghags. It does have glitches and occassionaly fails, specifically with short-term scans such as 'first glance'. It's two main functions include a shock absorber for when someone comes out of the closet and finding potential hook-ups for one's gay counterpart.
My coming out doesn't surprise you?
No, my gaydar BETA picked up on that years ago.
by Linalin February 25, 2009
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A straight person who wears clothes that make him look gay, often to the frustration of other gay men.
His jeans were so tight I was sure he played for my team, but it turns out he was just a gaydar assassin.
by Metalbeast May 26, 2010
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