English

Definition of gaydar noun from the Oxford Advanced Learner's Dictionary

 

gaydar

 noun
noun
BrE BrE//ˈɡeɪdɑː(r)//
 
; NAmE NAmE//ˈɡeɪdɑːr//
 
[uncountable] (informal)
 
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the ability that a homosexual person is supposed to have to recognize other people who are homosexual Word Origin 1980s: blend of gay and radar.
See the Oxford Advanced American Dictionary entry: gaydar