TINSTAAP
n.— «Perhaps the scariest-looking acronym in the alphabet soup of advanced baseball metrics that have arisen in recent years is TINSTAAPP: There Is No Such Thing As A Pitching Prospect. From iconic flops like Todd Van Poppel to flashes in the pan like Mark Fidrych, countless hyped hurlers have disappointed their starry-eyed fans.» —“Backing Up an Agent’s Pitch” by Dan Rosenheck New York Times June 13, 2009. (source: Double-Tongued Dictionary)