Top Definition
When someone says something completely obvious and stupid the reply would be "uh buh" as in you are a completley brainless fool
girl: *points to a fish* thats a fish
boy: UH BUH!!!!!
by amylovesjamie January 08, 2007
10 Words related to uh buh
An insult used to interrupt or humiliate another peer in an attempt to anger the target person.
Steven from Jupiter High School was angered greatly after Eric kept repeating uhbuh while Steven was speaking.
by Robert Dutton February 09, 2005

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