Karaoke is a term used by engineers to refer to an instrumental version of recording, thought it just meant the activity. 
hhhmmm I didnt know that either
Yea its not to be confused with the other Karaoke where someone lip syncs to a recorded song.
That type of Lip Sync is super popular in Asia especially Korea, how do engineers use the term exactly
Yea its actually really popular in Japan too, teenagers and adults love to go to karaoke bars all the time, this term though is for recording music without lead vocals.
oh you mean engineers like sound engineers? I was thinking building engineers and didnt understand
Yea sound engineers, the concept of recording studio records with no lead vocals has been around as long as recording itself.
Yes, but I never knew karoke was also used by sound engineers, very interesting