red ball
US slang
noun
A fast or express freight train or truck; (in extended use) anything having a high priority; frequently attributive.
Origin
Early 20th century.
- round frock
- round game
- round goby
- round hand
- Roundhead
- round-headed
- round-headedness
- roundheel
- roundheeled
- round-heeler
- round herring
- round-hoofed
- roundhouse
- roundhouse kick
- rounding error
- rounding-off error
- rounding up
- roundish
- roundishness
- round-leafed
- round-leaved
- round-leaved sundew
- roundlet
- round log
- round lot