Blowing a raspberry

Blowing a raspberry, strawberry or making a Bronx cheer, is to make a noise that may signify derision, real or feigned. It may also be used in childhood phonemic play either solely by the child or by adults towards a child to encourage imitation to the delight of both parties. It is made by placing the tongue between the lips and blowing to produce a sound similar to flatulence. In the terminology of phonetics, this sound can be described as an unvoiced linguolabial trill [r̼̊]. It is never used in human language phonemically (e.g., to be used as a building block of words), but the sound is widely used across human cultures.

The nomenclature varies by country. In the United States, Bronx cheer is sometimes used; otherwise, in the U.S. and in other anglophone countries, it is known as a raspberry, rasp, or razz – It was first recorded in 1890.

Blowing a raspberry comes from the Cockney rhyming slang "raspberry tart" for "fart". Rhyming slang was particularly used in British comedy to refer to things that would be unacceptable to a polite audience. The term "Bronx cheer" is used sarcastically because it is not a cheer; it is used to show disapproval.

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