Top Definition
Condition of wanting to have fun to the max all the time.

Incontrolable urge to have fun to your maximum capability.

Have to have all the fun possible.
Her maxifunitis would not let her get down from the ride; it was just too much fun.

She didn't recognize his case of maxifunitis until she realized he was the only one left at the party.
by omyca2 July 26, 2010

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