1. A riverboat equipped with a theater, especially one that stops at towns along the river and offers performances.
2. One who seeks attention by ostentatious behavior; a showoff.
intr.v. show·boat·ed, show·boat·ing, show·boats
To show off.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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