Specifically a smelly fanny. Refers to the smell that will emanate after said owner of fanny has been dancing for 9 hours in leather trousers. Can be used in a non-disco context to refer any malodourous female genitalia.
I had to hold my fingers outside the taxi window, the smell was that bad. I think it is fair to say she had a disco snatch.
by Thomas Grafton October 02, 2006