Top definition
1. Anyone who uses the term dipperoo

2. One who is not mentally retarded but acts like it at most times

3. One who is to stupid to realize that he's stupid
Reader of Definition: "Man whoever posted this definition is a dipperoo!"
Writer of Definition: "You're a dipperoo now!"

The dipperoo hit the random boy in the back of the head with a baseball bat and demanded and apology.

The girl who got a 71 on her test and was proud of herself was a total dipperoo.
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