What does «mantecoso» mean in Spanish?

It has butter.
Unctuous or greasy like butter. Of butter consistency or flavor.

Examples of use in Spanish: "chocolate mantecoso".

"Esta fruta tiene sabor y una consistencia distinta a la del mantecoso aguacate pequeño".

"Exquisito sabor mantecoso".
Fat, greasy like butter. It is also used figuratively.

Examples of use in Spanish: "Su abdomen lucía flácido y tirando a mantecoso".

"Leche mantecosa".