Mrs. Cash is the wife of billionaire X.S. Cash and the mother of their son, Monty. She is seen in the movie Dragon Ball Z: Bojack Unbound. Like Chi-Chi, she pampers her son greatly.

Her full name in the FUNimation dub is "Lotta Cash" which is a soundalike for the slang term "lotta cash" or a "lot of cash".

(Source: Dragon Ball Wiki)