- a boat, esp. a steamboat, containing a theater and carrying a troupe of actors who play river towns
- Slang a showoff; exhibitionist
- A riverboat equipped with a theater, especially one that stops at towns along the river and offers performances.
- One who seeks attention by ostentatious behavior; a showoff.
intransitive verbshow·boat·ed, show·boat·ing, show·boats
(third-person singular simple present showboats, present participle showboating, simple past and past participle showboated)
- To show off.