TXL Share definition Flag Short for "Thanks a lot!". Used to express gratitude to someone for their actions. "Hey John, I picked you up a couple of sandwiches and a bottle of Coke for later." "TXL, Tom." TXL by FeLKO May 22, 2016 0 0 Get merch Get the TXL mug. Buy Now — $32.95 See more merch
