The ability to detect that somebody was on Jeopardy!
My Jaydar was pinging when I saw the familiar Ken doll head of Ken Jennings.
by raincloud314 January 07, 2011
1 more definition
Top Definition
The ability that allows one to detect marijuana intoxication.
According to my jaydar, those two young people are high on marijuana.
by streethawk September 02, 2007

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