Alaskan Spank Tank Share definition Flag This occurs when you hit an elderly woman from behind as her oxygen tank slowly leaks into your butt causing a relaspe. This is also known as Jackass 4. The other day i boned this lady so hard and gaver her the ol alaskan spank tank! Alaskan Spank Tank by Donald Trumps Guilty Pleasure July 30, 2016 Get the Alaskan Spank Tank mug.