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To the end that "tipping" refers to enjoying the occasional road soda whilst cruising with a friend down your local thoroughfare, a tiptarded individual would be one that did not learn to drink while riding in a car at the appropriate age, and therefore is not ever capable of mastering such as skill.
"Dude, that was totally 5-oh that we just passed. Why the hell would you take a drink of that Old E forty just then?? You are so tiptarded..."
by dissident19 July 09, 2009
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