Top Definition
A rare combination of the words 'what' and 'no' that is often used in exclamations of quick and utter disbelief.
Justin: "Awe... I misses you."

Ashley: "Awwweh. I miss you too."

Justin: "I miss you more."

Ashley: "Whatno! You're crazy."
by DuckWoman March 31, 2011

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