They are sometimes keen sportsmen, but a good many scamps, dolts, and cads are that.
Torrington's was founded for gentlemen, and we don't mean to have cads here.
Indeed, even the cads with whom Gleason consorted seemed to have become inspired with contempt.
We'll jump on these two cads, and do them up now and at once!
For romance had come back to Italy; there were no cads in her; she was beautiful, courteous, lovable, as of old.
“cads, perhaps,” suggested Clare, who had not spoken for a long time.
Regular set of cads, from the foreman down to the lowest clerk.
“One would have to mix with such a lot of cads,” he would say.
But only to open it again to look in and utter the one word: “cads!”
And "cads" do the road in smart dog-carts as well as afoot or on bikes.
1730, shortening of cadet (q.v.); originally used of servants, then (1831) of town boys by students at British universities and public schools (though at Cambridge it meant "snob"). Meaning "person lacking in finer feelings" is from 1838.
A cad used to be a jumped-up member of the lower classes who was guilty of behaving as if he didn't know that his lowly origin made him unfit for having sexual relationships with well-bred women. [Anthony West, "H.G. Wells: Aspects of a Life," 1984]
A Cadillac car: And we'll rent a black Caddy (1920s+)