the innate ability to detect crazy people before they bring the crazy. Similar to gaydar.
That girl is hot but she's setting off my cradar.
by DrMezmo August 12, 2009
the intuitive ability to recognize when someone is crazy.
His cradar wasn't working when they first met. My cradar went off like crazy the first time he opened his mouth. Cradar would have told you he was a hot mess.
by geetman November 11, 2012

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