farting

pieru (present participle of)
The act of one who farts; a sound like a fart.
1989, William H. MacLeish, The Gulf Stream

Noise grew everywhere — radios, monstrous tape decks, the fartings of untuned engines.

Observing the pantings and fartings of our old Boston terrier Tunney one day, he proposed that the federal government should fund a plan like the Passamaquoddy Bay project that would put all this energy to some use.