Definition of "boffo" [bof•fo]

• Extremely successful; great. (adjective)
• See boff1. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "For all the latest numbers from Up's "boffo" box office run, domestically and internationally, go to Box Office Mojo."
• "Anthony's also got a followup entry at his blog: "[W] hat I neglected to mention in the story is that most of the films have not exactly done 'boffo' business.""
• "Anything to do with Krusty the Klown's gotta be, in his words: "boffo"!"