kinko, n. — Green’s Dictionary of Slang

kinko n.

[SE kink, an eccentric/kink n.³ (2) + -o sfx (1)]

(US)

1. an eccentric person.

c.1991

C. Fletcher Pure Cop 87: Others stare hard at us, perhaps thinking they’ve got two kinkos cruising from...the ’burbs [HDAS].

2. a person with bizarre sexual tastes.

1967

Hamma Motorcycle Mommas 57: The dikes...the ‘kinkos,’...you name ’em! [HDAS].