Related Clues:
- Stingy people with wealth that is invested
- ''Blue'' villains in ''Yellow Submarine''
- The Beatles made them blue in Yellow Submarine
- Blue "Yellow Submarine" things
- They lack generosity
- Perpetual troublemakers
- They'll never amount to anything
- Villainous army in a 1968 Beatles film
- Disreputable sorts
- Bullying types
- Real stinkers, literally and figuratively
- Dirty dozen?
- In the Yellow Submarine film, these were blue
- Bullying bunch
- Seamen, I suspect, nasty lot