AFK =Away From Keyboard, so obvious! People often use afk in multiplayer games or online chat. What. I have heard my friend talk about being AFK on a Minecraft server, but AFK is an acronym for "away from keyboard". It's commonly used in. This Slang page is designed to explain what the meaning of AFK is. The slang word / phrase / acronym AFK means . Online Slang Dictionary. Unsophisticated rural person from Southeast USA. Stay Away From Me. Computer port for keyboard or mouse. Most often it refers to a person sunny casino takes a break from online gambling or chatting long or short. This question is the very definition of lack of research. Someone from a council estate.