Oily superl. : Consisting of oil; containing oil; having the nature or qualities of oil; unctuous; oleaginous; as, oily matter or substance.

Oily superl. : Covered with oil; greasy; hence, resembling oil; as, an oily appearance.

Oily superl. : Smoothly subservient; supple; compliant; plausible; insinuating.

Example:
Eating too much Oily or fried foods is the cause of having Oily skin?

Taxonomy
how to, oily hair, shampoo, conditioner, tutorial, do it yourself.

Defination from the web:
oily hair. Hours after you come out of the shower, you expect your hair to look vibrant and fresh. You spent time scrubbing out the...