spit prep Share definition Flag When you fuck a girl from behind and spit directly into her ass, for lubrication to perform a "Burrow jump". Guy - bend over babyGirl - okay*PTEW*Girl - Did you just...spit prep me?Guy - yes i did 3:D spit prep by mr_jim February 7, 2010 0 0 Get merch Get the spit prep mug. Buy Now — $32.95 See more merch