Lay a stripe Share definition Flag Verb: To spaff in such a way as to leave a thin line of semen (usually up the back or stomach of ones sexual partner). Sarah Palin? Man, I would give anything to lay a stripe down that bitch's back. Lay a stripe by The Boston Mainframe. March 3, 2011 0 0 Get merch Get the Lay a stripe mug. Buy Now — $32.95 See more merch