The
act of walking and farting at the same
time. This act is done either because one is in a rush to get to one's destination and does not have
time to stop and fart; or if the fart is silent, it is done so one can fart relatively anonymously without others knowing the origin of the fart since by the
time others smell the fart, the person farting has walked on.
This is the verb form; the noun form is Farlk, which is simply a fart that is done while the farter is walking.