Blowing Raspberry 

Blowing raspberry involves sticking your tongue out of your mouth and producing a noise similar to that created by flatulence, similar to that of gas as it is passed through the anus.

Ruth let off a bronx cheer that was so smelly and disgusting that it made Alex vomit. Ruth denied it and said that she only was blowing raspberry

Blowing Raspberry by Peepaw Rocker March 16, 2011

Blowing a Raspberry

Blowing a raspberry or strawberry or making a Bronx cheer is to make a noise signifying derision, real or feigned. It is made by placing the tongue between the lips and blowing, making a sound redolent of flatulence. In the terminology of phonetics, this sound can be described as an unvoiced linguolabial trill . It is never used in human language phonemically (i.e., to be used as a building block of words), but it is widely used across human cultures.

Nomenclature varies: in the United States, Bronx cheer is sometimes used; otherwise, there and in other English-speaking countries, it is known as a raspberry, rasp or razz – the origin of which is an instance of rhyming slang, in which the non-rhyming part of a rhyming phrase is used as a synonym. In this case, "raspberry tart" rhymes with "fart". It was first recorded in 1890.

A Raspberry Pattern or The Raspberry Pattern represents the form that the mouth takes as it produces a noise similar to that created by flatulence, similar to that of gas as it is passed through the rectum.

The term "Bronx cheer" is used sarcastically because it is not a cheer; it is used to show disapproval. The term originated as a reference to the sound used by some spectators in Yankee Stadium, located in the Bronx, New York City.

Dan: Did Lisa flatulate?
Alex: No, it was Ruth, she was blowing a raspberry

Blowing a Raspberry by HermioneHands January 15, 2012

blowing raspberries 

it means to place your tongue between your lips and blow.Blowing raspberries is usually used as an insult and way of taunting or a gesture of disrespect .If somebody blows raspberries at another guy he is mocking him and it`s like telling him he is a loser and a sucker.In many cartoons you can see a character who blows raspberries at other characters and this is how he mocks them and taunts them.The little children are also taunting blowing raspberries at each other.The blowing raspberries insult is very similar to the British taunting called cocking a snook in which the thumb of one hand is on the nose and the extended fingers are wiggled and the tongue is sticked out.

Examples of blowing raspberries
Example 1:

A couple is splitting up.

The Girl: Please don`t leave me.

The Boy: Get the fuck out.

The Girl: But please I`ll do anything to make the things go right between us.

The Boy: Get the fuck out we are over I don`t wanna ever see you again *turns his back on the girl an leaves*

The Girl: *blows raspberries at the boy and goes away*
Example 2:

A boy is trying to catch a girl and beat her up for taunting him.The girl escapes the boy and quickly enters a house and locks the door so the boy is unable to catch her.Then the girl shows up in a windows and says:"Nanner,nanner,nanner, you can`t catch me" and then blows raspberries at the boy.

blowing raspberries by ZombieCop October 1, 2013

blowing a rhaspberry

sticking yr tongue out and blowing yup with some saliva coming out (sometimes anywayz)

*meep* He blew a rhaspberry

blowing a rhaspberry by chineko August 4, 2003