Loser Lapper Share definition Flag A person who walks around the mall aimlessly doing about 540 laps or so. Mossy was originally a Loser Lapper but joined the side of the Loser Leaners. Loser Lapper by Laurgasm June 1, 2003 0 0 Get merch Get the Loser Lapper mug. Buy Now — $32.95 See more merch