Douglas Harper's Etymology Dictionary
Usage examples of "pretty-boy".
The Guards may be pretty-boy soldiers, but the buggers can fight when they have to.
Cherubic features moulded into a satanic complexion - a desert of flaked, crumbling skin relieved only by oases of dermatitic pimplery : like the scummy death-mask of Troy Donahue, Peter McEnery, or some other noted pretty-boy.
Most of them are pretty-boy types, which the girls may swoon over but which any solid male bellied up to a bar can instantly dismiss with a sneer.