live wire
[noun]
Synonyms: hustler, dynamo, go-getter, peeler, rustler, self-starter

[TahlilGaran] English Synonym Dictionary ▲

live wire /ˌlaɪv ˈwaɪə $ -ˈwaɪr/ noun [countable]

1. informal someone who is very active and has a lot of energy

2. a wire that has electricity passing through it

[TahlilGaran] Dictionary of Contemporary English ▲

live wire
someone who is very quick and active, both mentally and physically.
I hadn't met Rory before - he's a real live wire.

[TahlilGaran] English Idioms Dictionary ▲

live wire
n. phr.
1. An electrically charged wire, usually uninsulated.
The electrician was severely burned by the live wire.
2. An alert or energetic person.
To sell the new merchandise, our company needs several salespeople who are live wires.

[TahlilGaran] English Idioms Dictionary ▲