bananas

1 of 2

plural of banana

bananas

2 of 2

adjective

ba·​nan·​as bə-ˈna-nəz 

 especially British  -ˈnä-

1

: mentally unsound

—usually used informally in an exaggerated way

… being prone for so long made me a little bananas.

—Niko Stratis

It may drive you bananas when they can't sleep without their one favorite pacifier, or won't take the plush teddy bear out of their mouth, or need to be by your side at all times.

—Tara Goldberg

"Seriously, I'm going bananas. I don't know what to do. I'm really frustrated. …, " [Vince] Clarke confesses.

—Lyndsey Parker

2

: very excited and wild

The crowd went bananas.

Examples of bananas in a Sentence

Adjective

All the noise drove me bananas.

Word History

First Known Use

Adjective

1957, in the meaning defined at sense 2

Phrases Containing bananas

• bananas Foster
• drive (someone) bananas
• drive you bananas
• going bananas
• went bananas