Definition from Wiktionary, the free dictionary
two-bagger (plural two-baggers)
- (baseball) A double (a two-base hit).
- Jones got a two-bagger in the first.
- (slang, pejorative) An extremely unattractive person (usually female), the insinuation being that one bag covering her face would not be adequate. Within this joke, the second bag is often understood to cover the male's head in case the female's bag were to fall off.