Blowing a raspberry, 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 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.

Blowing a raspberry - Wikipedia, the free encyclopedia Sunday, March 16, 2014 @ 8:51pm