lelb Share definition Flag Mutation of "lel", itself a mutation of "lol". Also sometimes plural, "lelbs". Used ironically in protest of 'lel' by those who feel that variant of lol is asinine. "Hurrr hey boys I'm a gamer grrllll LELB" lelb by Anonbutt December 9, 2012 0 0 Get merch Get the lelb mug. Buy Now — $32.95 See more merch