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noun: The quintessential breast. Margarita's are desirably large and fit the general criteria for the perfect breast. E.g shape, size, nipple type, firmness.

The term Margarita is a derivative from female bartenders around the world who serve alcoholic beverages (such as margaritas) are known for their large breast.
Hey cathy, your margaritas are hanging out.
by Jefferss August 12, 2009
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