Mrs. Cleary Share definition Flag A devil in the form of a highschool teacher. Sadistic and cruel, fit to teach English. -shit, Mrs. Cleary is teaching this year! - yea dude, FYL. Mrs. Cleary by bigbangjjang May 5, 2009 0 0 Get merch Get the Mrs. Cleary mug. Buy Now — $32.95 See more merch