Nowadays, a root beer float means different things to different folks. For some, it's not a root beer float unless you use plain vanilla ice cream dolloped into your root beer. Others put a little spin on things: plopping some chocolate ice cream into their root beer and calling it a "chocolate cow" or a "brown cow." Still others insist it's only a "brown cow" or a "black cow" if you use regular cola and ice cream. Then there's folks in places such as northeastern Wisconsin, who only call it a "black cow" if the root beer and ice cream are all mixed together, instead of leaving the ice cream floating on top. And would you believe, there's also a such thing as a "purple cow?" Yup, a "purple cow," created when you put a scoop of vanilla ice cream in a mug of purple grape soda.
But what do you call a black-and-white cow in a hot pink bikini, floating in a giant mug of root beer and melting vanilla ice cream?
Blissfully content:
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Sources:
"Black Cow" Root Beer Float Created - Answers.com
Ice Cream Soda - Wikipedia.org