Ricepatty Share definition Flag A crusty jizz stain left on an article of clothing. Generally clothing worn in public. 1. Look at the ricepatty on that girl's back.2. That dude has a huge ricepatty on his thigh. Ricepatty by aliasbob December 7, 2009 0 0 Get merch Get the Ricepatty mug. Buy Now — $32.95 See more merch