noun. A keen, hidden-pork-detecting sense.
Related terms: gaydar, straightdar, bi-dar, hickdar, loserdar, boob-dar, penis-dar, big dick-dar, hair-dar, porn-dar, sex-dar, food-dar, sleep-dar, money-dar, ho-dar, slut-dar, babe-dar, virgin-dar, jailbaitdar, hottie-dar, weirdo-dar, jerk-dar, moron-dar, dorkdar, skankdar, freak-dar, ass-dar, asshole-dar, Pretentious Club-going New York Assholedar, "someone is staring at my ass"-dar, “Jesus Freak” dar, zombie-dar.
Real citation: "As good as my gaydar, christiandar and undercover pigdar."
(SugarVelvetCheeks, Jan. 27, 2005, http://eurasiannation.proboards48.com/index.cgi?board=family&action=display&thread=1058299914&page=20)
Made-up citation: "Undercover pigdar is more useful in some professions than others, according to my guidance counselor."