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 has been described as a voiceless linguolabial trill, , and as a buccal interdental trill, . 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 has been described as a voiceless linguolabial trill, , and as a buccal interdental trill, .