gaydar 

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.

gaydar by susiektm July 7, 2014

Gaydar 

A mental radar that tells you someones sexuality.

Shane: Is she a lesbian?
Hannah: Nah, shes lesbiflexible.
Shane: How do you know?
Hannah: I used my gaydar. Duh!

Gaydar by arianne! August 18, 2010

Gaydar 

When straight people see a feminine man or a masculine woman and immediately go off of stereotypes by presuming they are gay, and then patting themselves on the back.

Heterosexual: Ooh, that girl over there is very “manly”... definitely gay. My gaydar is so accurate!!;)
An educated being: Gaydar isn’t real Karen you standardized piece of dried celery!!

Gaydar by @gabtaaard on ig:) June 30, 2019

gaydar 

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"

gaydar by Gunner Gumby October 13, 2007

Gaydar 

A creatable yet theoretical device used to measure and sense one faggotry

My Gaydars going crazy that guy must be a total insta-fag

Gaydar by Ultamato August 22, 2012

Gaydar 

A gaydar is a built in radar allowing people to distinguish homosexuals from a large group of hetrosexual people. It is often found, however, that the gaydar of a hetrosexual person works far better than that of a homosexual.

Man, i just walked past that guy there and my gaydar went off!!

Gaydar by Amusement March 5, 2010

Gaydar 

A term used when a person senses that their friend is gay or any part of the lgbt community and that person turns out to be what they predicted they’d be

Friend: Hey I have something to tell you

Other friend: you’re lesbian

Friend: HOW THE FUCK DID YOU KNOW?!
Other friend: GAYDAR THAT’S HOW!

Gaydar by Queer person August 20, 2018