This Slang page is designed to explain what the meaning of AFK is. The slang word / phrase / acronym AFK means . Online Slang Dictionary. 5 definitions of AFK. Definition of AFK in Slang/Internet Slang. What does AFK stand for?. AFK is used in live chatting to advise people that you will not be responding for the few minutes as you will be away from the computer. AFK is. Voice typing OP, nerf. Roblox, the Roblox logo, Robux, Bloxy, and Powering Imagination are among our registered and unregistered trademarks in the U. AFK is "Away From Keyboard". Immediately from Latin statim. Looks Good From Behind. Learn From My Fail. Guys, I have to go afk in about 10 minutes.