The act of bending over, and raise your tail- or just to pull down your trousers- and to let your feces (poop/shit), fly out and smack someone else in the butt hole.
The Verb form is "Donswaguhduhdunfin'" And that is a war between two people, who like to Donswaguhduhdunf.
Taylor: OH MY GOD IS YOUR DOG ABOUT TO---?
Krista: YES I BELIEVE SO---
*feces flies out of the dogs anus and smacks the swing set*
Taylor: SHIITTTTT Your dog just was DONSWAGUHDUHDUNFIN'
Krista: Yessss, let's go donswaguhduhdunf with him!