The sexual act of taking an umbrella and shoving it inside your partner's rectum, then opening it to its for extent. It was first done on accident when, the original Mary Poppins, fell down and shoved it in to John Davis' butt. Then later it was used to clean out people's ass.
A girl whose pussy is so loose and flobby(probably from being a slut)that she could jump off a building spread her pussy and use her pussy to float down to earth slowly.