(V) The act of farting while walking; preferably used when a slow-moving, very lovable, senior citizen is on the move. (Jet propelling)
(N) The gas that is passed when a senior citizen is moving very slowly.
(Noun) Big Yiayia is jet propelling across the formal dining room. You know the one with the plastic on the couches?
(Verb) What was that sound? That was Big Yiayia's jet propulsion.