Somebody who tends to live the 'hippy' way of life to the extreme, they usually have white-boy dreads & take lots of 'earthy' drugs (weed/mushrooms/psychoactive plants etc & lsd), love travelling to festivals / acid techno squat parties in their 'freedom wagons' or VW camper vans, Beetle's or 20 year old decomissioned old service vans/trucks etc. Usually vegetarians and love going on protest marches/anti war/anti fox hunting marches etc.
Can be heavily into spirituality & regularly smell of josticks or special brew / cider. Sometimes mistaken for tramps.
It is not uncommon to see crusty lumps of ketamine amalgomated with snot on the hedge monkeys nose.
A hedge monkeys hair is usually home to many animals and used as a home by local birds and cats.
Hedge monkeys have their own dance, a strange repetitive forward-backward motion, like you'd imagine an insane person to do. usually to psy-trance, techno, acid tecnho, gabba etc...
Look at that hedger, she's set her legs on fire with her poi-chains
The club had more hedge monkeys than all of Goa