noun; A man who knows no bounds in the realms of the possible and will solve any problem that comes before him like the true hippy yank he is. Also a member of the Brotherhood of The Tree, the Gatekeeper of the Light.
Guy: Man, my girl don't like me anymore, what should i do?
Agony Yank: Alright, alright first off you gotta show up at her work wearing only moon boots and a space helmet. Then you tell her the Gatekeeper of the Light says if she don't respect you, he'll send the goats-head of Mesopotamia to introduce her to the ways of the Tree. That'll sort you out. If not, you can smack that bitch with my trusty bat butch. It's ok, you have my permission...