Gentleman

·noun The servant of a man of rank.

II. Gentleman ·noun One who bears arms, but has no title.

III. Gentleman ·noun One of gentle or refined manners; a well-bred man.

IV. Gentleman ·noun A man well born; one of good family; one above the condition of a yeoman.

V. Gentleman ·noun A man, irrespective of condition;

— used ·esp. in the plural (= citizens; people), in addressing men in popular assemblies, ·etc.

gentleman commoner
An empty bottle; an university joke, gentlemen commoners not being deemed over full of learning. ...

Dictionary of The Vulgar Tongue by Francis Grose
gentleman of three ins
In debt, in gaol, and in danger of remaining there for life: or, in gaol, indicted, and in danger of...

Dictionary of The Vulgar Tongue by Francis Grose
gentleman of three outs
That is, without money, without wit, and without manners: some add another out, i.e. without credit....

Dictionary of The Vulgar Tongue by Francis Grose