Sponny

A "Sponny" is the act of performing a spontaneous backflip and not filming it.
Also known as a "Sponno" or "Sponny B"

Oh, do a Sponny b off the the side of the boat.

by S.P.O.N.O August 29, 2017

Sponny

A series of spontaneous spur of the moment plans induced by the consumption of alcohol

'that was a sponny night'

by Stepheatsme June 15, 2021