age out
v. phr.— «Amy Weldon is what’s called a rook-out, a first-year rookie who’s aging out of the corps. She says her first—and last year—has offered her memories that will last a lifetime.» —“Drum Corps Groups March Out of Madison After Championships” by Dana Brueck WMTV-TV (Madison, Wisconsin) Aug. 12, 2006. (source: Double-Tongued Dictionary)
Further reading
Matt in Beloit, Wisconsin, reports that when he was in high school back in the 1990s, he and his friends used the word biscuit in phrases like I feel like a biscuit or I bet you feel like a biscuit now, the idea being that someone said something...
We tend to take the index of a book for granted, but centuries ago, these helpful lists were viewed with suspicion. Some even worried that indexes would harm reading comprehension! A witty new book tells the story. Plus, the Latin term bona fides...