1. The buttocks. Primarily heard in US. Kids, sit your fannies down and eat your dinner, now! I slapped him in the face when he put his hand on my fanny.
2. vulgar The vulva or vagina. Primarily heard in UK. I slapped him in the face when he put his hand on my fanny. Wax my fanny? No thank you!
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
n. an event that draws so many people that they bump into one another. There was a typically dull fanny-bumper in the village last night.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.