Green’s Dictionary of Slang

parky n.

also parkee, parkie

a park-keeper.

[US]J.G. Rothenberg ‘Peanuts! The Pickle Dealers’ in AS XVI:3 Oct. 188: Parky, Johnny Greenleaf. A park attendant.
[UK]R. Llewellyn None But the Lonely Heart 51: The parkie was standing outside the lodge.
[UK]Manchester Guardian Weekly 23 May 10: I have seen many an old pensioner, bending to touch the petals of a fine gladiolus, jump back full of alarm and guilt as he saw the parkies’ tell-tale armband appear.
[US]T.C. Bambara ‘Raymond’s Run’ in Gorilla, My Love (1972) 28: The parkees unfolding chairs.
[US](con. 1960s) R. Price Wanderers 14: Big playground was deserted except for the parky in his olive uniform.
Viz Comic: The Big Hard No. 2 81: I’m the parkie. I wear the fuckin’ uniform round here.
[UK]I. Welsh ‘A Smart Cunt’ in Acid House 179: The great killer for the parkie [...] was boredom.
[UK]D. Flusfeder Gift 305: I blagged this off a parkie.