to leave a computer etc running (idling, downloading, or playing a game in one's stead etc)
Definitions (粵典–words.hk)
動詞
指遊戲玩家離線/離開電腦之後,電腦角色繼續自動執行任務去賺錢/升呢 to keep logged into a game while not actively playing it; often the player can earn (in-game) money or experience by automation being away from the keyboard
「陣間約咗朋友出街,開住電腦掛機先。」
「阵间约咗朋友出街,开住电脑挂机先。」
zan6 gaan1 joek3 zo2 pang4 jau5 ceot1 gaai1, hoi1 zyu6 din6 nou5 gwaa3 gei1 sin1. "I need to see a friend in a moment. Let me AFK for a bit."
Definitions (Wiktionary)
verb
to go away from keyboard (go AFK)
verb
to hang up the phone
verb
to leave the computer on (to download something, when going outside, sleeping, etc.)