Rusty boneyak when your doggie style and slip from front door to the back door you end up with a rusty boneyak.
When fucking your partner you slip from the front hole to the back hole your tool is a rusty boneyak
When you are twerking your partner and you fart but its a shard and you spray shit all over their face.
After a drunken night of cheap alochol and bad clams, you and your partner experience a rusty vangouh.