two-bagger

Short definition from Wiktionary

Noun

1. 1
   A double (a two-base hit).
2. 2
   A two-miler when running miles for conditioning.
3. 3
   An extremely unattractive person (usually female), the insinuation being that one bag covering her face would not be adequate, but that a second one is needed, usually on the observer's head, sometimes specifically during sex. This meaning is often associated with a joke by comedian Rodney Dangerfield.