What Smithers tells Burns the angry movie audience is saying after a screening of his film "A Burns for All Seasons".
During the episode "A Star is Burns", Mr. Burns asks his faithful assistant Waylon Smithers if the crowd is booing his blatantly egotistical motion picture. Smithers, ever the yes-man, replies that they are saying "boo-urns" (i.e. "Burns"), and not "boo". When Burns asks for clarification, the crowd replies that they are indeed saying "boo", and not "boo-urns". After the crowd replies, Hans Moleman says that, in fact, he was saying "boo-urns".
This denial of booing probably derives from the common practice of sports fans cheering for an athlete with a name (or nickname) containing an "oo" sound with a chant of the name that ironically resembles a "boo." Sportscasters covering the game often feel the need to explain to viewers/listeners that, as an example: "The crowd isn't booing, they're saying 'Lou' [as in Piniella]."
[citation needed]During recent ANZAC Day Australian Rules Football matches at the Melbourne Cricket Ground fans could be heard chanting "Boo-urns" each time Collingwood player Scott Burns was in possession of the ball.
Jon Stewart once used a variation of it after he failed badly on throwing the first pitch at a Mets game. He said they weren't saying "Boo" but "yoouuu-suck" [citation needed]
American indie-rock band Shinobu has a song entitled "Boo-urns".