Any individual small perversion which an individual may entertain as part of their greater collection of corrupt character traits. Also a benchmark of purity - whether something is considered a kink or merely commonplace.

For instance, I've been alone for so long that the thought of a naked female body is considered kinky.

Kink (?), n. [D. kink a bend or turn, or Sw. kink.]

1.

A twist or loop in a rope or thread, caused by a spontaneous doubling or winding upon itself; a close loop or curl; a doubling in a cord.

2.

An unreasonable notion; a crotchet; a whim; a caprice.

[Colloq.]

Cozzens.

 

© Webster 1913.

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Kink (?), v. i. [imp. & p. p. Kinked (?); p. pr. & vb. n. Kinking.]

To wind into a kink; to knot or twist spontaneously upon itself, as a rope or thread.

 

© Webster 1913.

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Kink, n. [Cf. Chincough, Kink-haust.]

A fit of coughing; also, a convulsive fit of laughter.

[Scot.]

 

© Webster 1913.