n. One who or that which jags. Specificallyn. A little wheel with a jagged or notched edge, set in a handle, and used in ornamenting pastry, etc. Also called jagging-iron.n. A toothed chisel.n. One who works draft-horses for hire.n. One who carries a jag or wallet; a peddler.n. The rough projection raised by nicking a piece of metal with a chisel; a jag.