Self masterbation (usually male) performed simultaniously whilst inserting a
finger into the anus and asphixiating ones self, but not beyond the point of passing out. Only enough to reduce the amount of blood flow to the
brain so that it is directed towards the penis for a more intense
wank.
Tying a belt or a tie to a hook or bar and then putting it around your neck , lean into it to reduce circulation to the
head, shove a finger up your
butt and away you go, thats having a chokey pokey bum
wank!