What does chum mean slang?

What does chum mean slang? friend : a close friend : pal. chum. Is chum an insult? “Chump,” meaning “an idiot, a blockhead” or “a sucker, a loser,” actually appeared in English at roughly the same time as “chum,” but has never been anything but a dismissive insult. What does chumming around mean? To chum […]