K-mark Share definition Flag How white trash and rednecks say the name for the slowly failing discount store, K-mart. Some black people also pronounce it this way. Jeb: Where'd Jethro go? Brandi: He went to buy some cheetos at the K-mark. K-mark by RobinL December 31, 2005 0 0 Get merch Get the K-mark mug. Buy Now — $32.95 See more merch