How do you spell Drummer

Available Definitions:
1)  n. - One whose office is to best the drum, as in military exercises and marching.
2)  n. - One who solicits custom; a commercial traveler.
3)  n. - A fish that makes a sound when caught
4)  n. - The squeteague.
5)  n. - A California sculpin.
6)  n. - A large West Indian cockroach (Blatta gigantea) which drums on woodwork, as a sexual call.