Idioms: Top banana Posted by Martin - April 10, 2013 - What's happening? 2 Example sentence: “Morag is the captain of the netball team. She is the top banana!” Embed this illustration on Your Site: Kaplan English Idioms Illustrations Click the link for the full Food Idioms illustration! Martin (320 Posts)Martin is originally from the beautiful city of York and has been living in London for the last few years. He loves writing and helping to create infographics. @MartinHofs user000 hahaha, very funny, everywhere has “Top banana” Martin Thanks for the comment. We think the illustrations are funny too! Which one is your favorite?