One of my social studies teachers from middle school made this one up...
Quest: not short enough to be a quiz, not long enough to be a test
Also, I have one myself...
Sinkstake: a mistake pitch that is supposed to be a fastball (or really anything else, it's been done with sliders too) that winds up being a pseudo-sinker, it's a really bad pitch but is so bad it's actually effective. (I don't pitch much at all and haven't in many years but I remember striking a few out with sinkstakes).