Lost in Translations

Barbara and Jimmy were telling me about the episode of "Magic School Bus" they'd watched, where an ant ate part of Arnold's "mala-blaster" (?) So I asked, what is a "mala-blaster". Barbara got excited and exclaimed, "it's like, you know those CASH COWS you eat sometimes!" LOL Now I was really confused - Mala-blasters are just like Cash cows that I eat??? Then I realized she meant my Skinny Cows ice cream sandwiches (with only two WW points :) Ha ha, so mala-blasters are some kind of ice cream sandwich. Where did she even hear the term cash cow???