adj. Prone to inhaling grey matter the way my dog chows cat poo. Ew.
Real citation: “So yeah, the computer's my brainsucky machine of choice these days.”
(July 20, 2006, http://monkeyfilter.com/link.php/12270)
Made-up citation: “My education reform plan can be summed up in thirteen words: We’re taking the D out of de-edumacation. But we’re leaving that brainsucky part.”