To disconnect from a supply, especially an electrical socket.
To save electricity, I unplug my computer when I am not at home.
To stop using electronic devices, especially for relaxation or to reduce stress.
To remove a blockage from (especially a water pipe or drain).
I had to unplug the sink the other day: there was far too much hair and gunk down there.
Not plugged in.
Using acoustic instruments, especially instead of electric ones.
Without a plug or bung (of a vessel containing liquid)
Presented in a more low-key and intimate context than usual.
I enjoyed watching "Miley Cyrus Unplugged" last night.