Dappy is one third of the group N-Dubz.
N-Dubz are from London.

He wears woollen hats.
Dappy - Na-na-na it's N-Dubz
by JetPie December 12, 2007
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Doing something stupid and/or uneccisary.
Tom: I broke my arm on my trampoline

Louie: Your so dappy!
by Morsli June 05, 2009
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A person that acts cool when they aren't or is unnecessarily loud in a public place.
John: you see that guy over there shouting at random people and acting like he's cool?

Steve: yeah, he's such a dappy
by deirdre barlow 69 January 24, 2013
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Dappy is a word, typically used in sentences. It can be used as a noun or proper noun, but only in the case of addressing a person or thing that has been labeled as "dappy".
'Good morning, Dappy!'

'Why did you name me Dappy? What does it even mean?'

'Dappy is a word, typically used in sentences. It can be used as a noun or proper noun, but only in the case of addressing a person or thing that has been labeled as "dappy".'
by Janet Fonda June 01, 2020
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When someone whose name starts with a D makes you happy therefore making you Dappy.
Whenever that boy Dorian texts me I get so Dappy!
by amaexo June 11, 2018
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for someone to be so happy its depressing to everyone around them.
Mollie: Ughhh Tina is sooooo annoying today!

Jen: I know she so dappy i could murder her.
by LoveChan July 29, 2010
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