When the crowd at a sporting event start booing. Origin in baseball.

Also known as " blowing a raspberry" or "a raspberry". It is made by placing the tongue between the lips, or alternately placing the lips against any area of skin, and blowing. It is meant to replicate a fart and is a sign of derision. The term "Bronx cheer" dates back to the 1920s to signify this sound. The other definitions are historically incorrect if they do not mention this sound.

a loud and rude flatuation sound made with the lips

A sarcastic cheer when a struggling team completes a mundane task.

A loud fart, as difined by text on the classic woopie cusion

Booing and heckling someone who is disliked by a large crowd.

to expell bodily gases; to fart

Dialect from the New York area, a medium-pitched warbled emitted from the rear poop passage, usually associated with the emission of shit juice.

Bronx Cheer is a term associated with a similar word from the New York dialect, Bronx Bombers - a word commonly misunderstood to refer to the proverbial team's hitting prowess, it is now known that both terms originate with a regrettable roadtrip night during which the Pinstripers spent binging on beans and broccoli.

The home team, none other than the Chowds, was so overcome with the super nauseous naus that contributed immediately to the Yanks 8-1 win the next day, as well as an immediate need for team-wide uniform pant replacements.

The next time the commie-boots visited the Babe's house, Yankee fans greeted them with a chorus of orally-produced "Bronx Cheers" complete with dip-juice to simulate the events of the road trip prior.