What does BAK mean?

Back at keyboard

When you get a message with ‘BAK’, it means the sender is back at their keyboard and ready to talk or continue what you both were doing. This is usually from someone who has been away from their keyboard, or AFK, for some time.

It’s good manners to reply to a BAK message with ‘WB’, or ‘welcome back’. You might want to ask where they’ve been or what they’ve been doing while they were AFK. Alternatively, you can just carry on with whatever you were doing before.

Example for using ‘BAK’ in a conversation

Hey! Are you there?

Sorry, I was AFK. BAK now!

No worries! WB. What were you up to?

Just grabbed a snack. Feeling refreshed now!