Farterfly
When you have a towel wrapped around your waist, fart and then wave the towel ends like the ends of a Butterfly.
*me with a towel wrapped around my waist*
*farts*
Her: Don't you Farterfly me!!!
Me: Flaps towel ends around
*farts*
Her: Don't you Farterfly me!!!
Me: Flaps towel ends around