show one’s butt
v. phr.— «Showing his butt: A term used by officers to describe an inmate who is mouthing off or complaining about his treatment. As in: “That inmate was showing his butt.”» —“What the lingo means” by Adam C. Smith, Jo Becker St. Petersburg Times (Florida) Dec. 30, 1999. (source: Double-Tongued Dictionary)
Further reading
Advice about college essays from the winner of a top prize for children’s literature: Kelly Barnhill encourages teens to write about experiences that are uniquely their own, from a point of view that is theirs and no one else’s. Plus, why do we say...
While compiling the Oxford English Dictionary, lexicographer James Murray exchanged hundreds of letters a week with authors, advisors, and volunteer researchers. A new collection online lets you eavesdrop on discussions about which words should be...