(noun) - Harvard-style definition: flatulance occuring, and most likely caused by the activity, while one is engaged in sexual intercourse.
URBAN DEF.: a fart while one is having a fuck, or fucking.
also: farking, farked
(origin: the term is a mix of the two derogatory terms "fart" and "fuck"; Source: High Times magazine, 1980s)
He suddenly stopped banging her, dragging his ass to the side of the bed to avoid farking a third time, and swore he'd never again eat bean chili during a date.