lül Share definition Flag Similar to the English lul. lül is short for "lache übelst laut" in German, and looks like a happy face throwing his arms into the air. Karsten: *falls on the floor* Reporter: "What is wrong with Karsten, doesn't look good" Public: lül lül by adamwarvergeben August 1, 2022 0 0 Get merch Get the lül mug. Buy Now — $32.95 See more merch