3.14 hole Share definition Flag Slang term for a math nerds mouth (3.14 aka Pi) Poindexter started mouthing off about trigonometry and i told him to shut his 3.14 hole 3.14 hole by Coolrockindaddy January 18, 2008 0 0 Get merch Get the 3.14 hole mug. Buy Now — $32.95 See more merch