Clurve Share definition Flag A pitch in baseball that has the movement of a fastball, but the grip and arm action of a curveball, fooling the batter. This is often used as a strikeout or setup pitch. The clurve on 1-2 froze the batter as he could not take the bat off of his shoulder. Clurve by aelm22 October 19, 2016 0 0 Get merch Get the Clurve mug. Buy Now — $32.95 See more merch