Used as an interjection in reaction to a pleasant occurrence or receiving some benefit, often a surprising one. A: "And I got some ice cream for you, too." B: "Ooh, bonus!"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
exclam. That’s great!; That’s good enough to earn a bonus! Bonus! That’s the best news I’ve heard in a long time!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.