I've always thought "Rounder" was American for "Bounder". We don't hear so good...

When I was a boy, there was a local parody that went:

Casy Jones was a son of a bitch,
He drove a Ford with a whorehouse switch,
He blew the whistle and he rang the bell
And he went through Machias like a bat out of hell.

Now Casy Jones said before he died
There are two more women that he wanted to ride,
His fireman asked him, who could they be,
It was Frances Crocker and Susie McGee.