1 definition by Layynuhh Dee

Top Definition
The act of purchasing an ice-cream cone at a drive through, asking the person if they believe in unicorns, then sticking the ice-cream cone to your forehead while slowly driving away screaming, "believe"!!
Mary and Jane went uniconing through the drive-through window with icecream cones stuck to their forheads.
by Layynuhh Dee August 15, 2011
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