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1.
a funnier way of saying "yup"
-"did u stay home today from school?"
-"chyup!"
by andist89 June 15, 2009
 
2.
The mixture between the words Chyea and Yup.
In a conversation:

"Are you coming to the movies?"

"Chyups!"
by Kaitie Lindner September 22, 2007