B.S.T.L. Share definition Flag Balls Stuck To Leg When your balls stick to your leg because they are sweaty Do u have a spatula? i got B.S.T.L. B.S.T.L. by D Rock Da Jew / Derek March 12, 2007 0 0 Get merch Get the B.S.T.L. mug. Buy Now — $32.95 See more merch