lmao Share definition Flag stands for 'laugh my ass off', but when you type it out, you're really just staring at your phone/ computer screenn with no emotion. omg wait- I did NOT mean that!!!lmao (stares blankly at phone) lmao by this byotch righ there January 10, 2021 0 0 Get merch Get the lmao mug. Buy Now — $32.95 See more merch