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A person, usually of an Italian descent, who is generally crabby when things aren't the way they want to go. Usually this person is in a bad mood and chooses not to participate in amusing activities.
Friend #1: I just tried joking around with Mike about something going on right now and he told me to leave him alone and to stop bothering him.

Friend #2: I know right, he did that the other day. Mike is such a Della NoFun.
by dee-bow June 07, 2011
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