A word used to express excitement. Kind of like "yay"...
DUNNY: Hey Sassto, what're you doing tonight?
SASSTO: I was thinking about dunnygaming with you and Kirtan. What do you think, Kirtan?
KIRTAN: Yitadee!
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To overthink something to the point no normal person would.
DUNNY: So what exactly would Sasstogaming and Desaigaming mean?
KIRTAN: Shut it.
SASSTO: Yeah you're dunnybraining right now.
KIRTAN: Yitadee!
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