The art of poking ones bum to simulate the male g-spot while performing the art of wanking (Male masturbation).
'He totally is going for a pokeybumwank.'
'I did a pokeybumwank last night and it was the hardest I'd ever cum'
'I did a pokeybumwank last night and it was the hardest I'd ever cum'
by SJIsCool March 28, 2010