Also found in: Dictionary, Thesaurus.
To become voluminous ("bushy") in appearance. That plant bushed out so much this year that it blocked some of my flowers from the sun. My hair is so curly that it will just bush out if I cut it short.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
[for a plant, bush, beard, head of hair] to develop many small branches or hairs. His beard bushed out and really needed trimming. I hope the hedge bushes out nicely this year.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.