keyboard vomit Share definition Flag An unintellectual random line of letters when the keys of a keyboard are randomly pressed. My cat stepped on my keyboard and I ended up sending an e-mail with keyboard vomit. (jvba;lewfjhgnsflkvjooo) keyboard vomit by Sir. Kick Ass May 16, 2011 0 0 Get merch Get the keyboard vomit mug. Buy Now — $32.95 See more merch