It is when a mail (or femile if they have a strap-on) lays there partner on their belly with their butt exposed and jumps in the air and slams their penis into their partners butt
When one hotdog will not succeed in pleasing one's ass one can proceed by rubberbanding all of the hotdogs in the package together and sitting on them to gain anal stimulation.
Sarah became unsatisfied with one hotdog in her anus so she proceeded to inventthe polishbuttnuke and use it daily.