Top definition
When you are sitting down and the fart goes up between your leg and your nut and tickles your leg.
I did one just then and I thought you should know about it
by Leigh Kemp March 21, 2004
Get the mug
Get a Nut Fart mug for your cousin Georges.
When a man has an orgasm at the same time he shits the bed.
Jan broke up with Matt after he busted a nutfart on her last wedneaday.
by BLACKHEATHER December 15, 2018
Get the mug
Get a Nutfart mug for your Uncle Georges.