noun-modifying (irregular)
Prenominal form of 脂ぎる, describing something that is oily or greasy, often with a negative connotation of being unpleasantly shiny or slick.
I don't like greasy food.
His oily face bothered me.
Variant spelling using 油; less common but acceptable.
Derived from the verb 脂ぎる (to become oily), which combines 脂 (oil, fat) with ぎる, a suffix indicating a state or tendency.