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1.
A noun, meaning a silly, weird or highly random person or object. Often used when talking about Blehoobish people.
Well aren't you a Blehooba today?
by Blehooha Fluffpants August 22, 2011
 
2.
The person you know who is so random, so silly, that the word that you use to describe them has to make no sense whatsoever. See also Blehoobish
You are the blehooba.
by Mad Llama August 21, 2011
 
3.
A random exclamation which means that you are either happy, excited, Blehoobish, amazed or surprised.
Bob: OMG! You have a cake for lunch!
Fred: Why yes I do! Blehooba!
by Rad Llama August 23, 2011