It means cheek, cheekbone. It can also mean buttock, fleshy part.
A form between derogatory and affectionate for cacha ( "molla , fleshy") that can be referred to each cheek or also to each buttock.
CACHETE:MEJILLA.MEATIEST PART OF THE FACE.
Part of the face, where in old times and now men give pampering to women.