1. an affirmative answer or decision to a question. Essentially the same thing as saying "Yes", but way better.
2. An act of agreeing with someone or showing approval.
3. A way of showing something has been completed, or finished.
Example 1:
John- "Hey, do you want to go to the movies tonight?"
Jane- "Donsies!"

Example 2:
Jane- "Dude! I got a new kitty today!"
John- "Really?! Donsies!"

Example 3:
John- "Did you ever go get kitty food for your new kitty?
Jane- "Donsies."
by DefinitionSlut March 7, 2014
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