Top definition
A person making sure their opinion is heard when no one cares.

In context, the phrase "Diva Number One" must be said in a sassy tone, calling out the diva in question.

If a person is being "Diva Number One," it is your RIGHT to put them in their place.
Mukund: I have to go to the store and buy Puffs Plus with Lotion.

Everyone (in unison): Diva Number One!!!!!
by lilrachel333 March 31, 2011
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