■ noun
1》 a person or thing that moves.
2》 a person who instigates or organizes something.
3》 chiefly N. Amer. a person who transports furniture to new premises.
Phrases
a ~ and shaker a person who initiates events and influences people. [from ~s and shakers , a phr. from O'Shaughnessy's Music & Moonlight (1874).]