During sex, one partner takes a balloon filled with fart and then pops it during penetration from the rear close enough to the receiver's face to provide a sweet breezy experience just as they are about to cum, hence the "tornado". A popular move in San Francisco
Melissa was craving some rear entry action, so Ted filled a 8" balloon and blew her away with the Frisco Tornado before finishing off on her back.
by juaco November 5, 2012