Top definition
An expression of disbelief. Can be used in any situation in which you can't believe something has or hasn't happened.
Ex 1-
Mary: I haven't gotten my period for 3 months....
Joseph: Oh, nuttercup!

Ex 2-
Fred: Did you hear that Rachel's dog died?
Gary: Oh nuttercup!
by Dr. Doctor Pepper January 27, 2012
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