It's from that episode of The Simpsons where the audience is booing Mr. Burns. Hans Momans was like: "I was saing boo urns!"

Boo urns means that sucks or boo hoo.
by Lea April 01, 2005
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1)Derivitive of boo, exclamation of negative feelings towards situation, item, person, or comment.
2)Shouted in suport of Mr. Burns, while in a mob of onlookers
(bartender)Hey, guys last call.
(partons)Boo-urns
by Little j (of Flylife) August 22, 2002
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A word orginating from Waylen Smithers in the episode of The Simpsons entitled A Star is Burns. Mr Smithers informs Mr Burns the crowd is not saying Boo Burns but Boo Urns.

Boo Urns thus is an alternative to saying Boo, if you wish to Boo someone or something without them actually knowing
me :That last customer was very boo-urns

me: Wolverine was so shite, Deadpool was only in it for 10 minutes

you: BOO-URNS!!!! BOO-URNS!!!

me : I have to finnsh work an hour later

you: That's freaking boo-urns we we're gonna go to the movies.
by Miss Mauritia June 10, 2009
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