three special letters Share definition Flag A euphemistic way to refer to the phrase kys (meaning "kill yourself").Also seen as "three letters" Alice: (@Carol) Bob was spamming the three special letters in chat. Carol: *bans Bob* three special letters by iliketoshitmypants69 July 19, 2023 0 0 Get merch Get the three special letters mug. Buy Now — $32.95 See more merch
