Top definition
A euphemism for the anus. Most etymologists believe that the phrase originally referred to the anuses of monkeys, who are believed to subsist mainly on bananas, although now the phrase is commonly used to refer to the human anus.
1. Toddler: Mommy, where does poopie come from?
MILF: Your banana exit, sweetie.
2. Student: Doctor, what is this itchy rash around my banana exit?
Doctor: I'm sorry, son. You have herpes.
3. Porn star: Oh, fuck yeah, it's so big! Put it in my banana exit!!
MILF: Your banana exit, sweetie.
2. Student: Doctor, what is this itchy rash around my banana exit?
Doctor: I'm sorry, son. You have herpes.
3. Porn star: Oh, fuck yeah, it's so big! Put it in my banana exit!!
by Reese Witherspoon April 14, 2008