plugged in

Short definition from Wiktionary

Adjective

1. 1
   With its plug properly connected to the electric plug socket.
2. 2
   Fully aware; in a state of keeping up with current information about a topic; engaged wholeheartedly in a task or cause
3. 3
   Alternative form of plugged in.

Verb

1. 1
   simple past and past participle of plug in