Gramp Stamp Share definition Flag When you're getting fucked by an old man he pulls out and cums on your back. When Grandpa Jones pulled out and came on Remy's back he gave Remy his Gramp Stamp Gramp Stamp by SwampPuppy July 17, 2023 0 0 Get merch Get the Gramp Stamp mug. Buy Now — $32.95 See more merch