AFK is commonly used with a descriptor like " afk bio" (you are going to the washroom), or " afk phone" (you are answering a phone call). AFK is. Looking for the definition of AFK? Find out what is the full meaning of AFK on playheartscardgame.review! 'Away From Keyboard' is one option -- get in to view more. This Slang page is designed to explain what the meaning of AFK is. The slang word / phrase / acronym AFK means . Online Slang Dictionary. Don't click the following. Trending Now Top Ten most popular slang look ups today. Most often it refers to a person that takes a break from online gambling or chatting long or short. AFK is commonly used with a descriptor like "afk bio" you are going to the washroomor "afk phone" you are answering a phone. Arqade is live football betting question and answer site for passionate videogamers on all platforms.