kinky
adjective
1
used for describing any sexual activity that deviates from the speaker's sense of sexually 'normal'; also of any article, enhancement or manner of dress that may be used in such activity US, 1942.
2
eccentric, bizarre US, 1847.
3
illegal; dishonest. In prison, used without a sense of perversion US, 1903.
4
stolen US, 1950