Walking Farts 

People are different in many ways. One of those is the way they fart. The Walking Farts describes somebody that lets their farts out in small, easy to handle squeezes, if done whilst walking, this makes a familiar "Pop!... Pop!... Pop!... Pop!" noise. The walking farts generally do not smell as much because they let out smaller doses of Methane, thus this is the prefered way to fart

Did you hear Tom walk by? He must have the walking farts!

Walking Farts by Mother Farker Chinese Dentist May 14, 2006

walkin farts 

little popping farts while a person is walking, very common in old deaf people
aka popcorn farts

(pop,pop,pop)
Grandpa: GET DOWN! THE KRAUTS ARE SHOOTING!
Grandson: Nah, it's just Grandma & her walkin farts

walkin farts by cyberpope67,BC,Canada October 21, 2010