Trellaphone
In gangster rap music, the slight yet noticeable chime, whistle, or soft acoustic noise played on repeat in the background. To a caucasian middle-class male, the sound can be comparable to a cricket's mating call, the slight pull on a harp string, or a soft beat of a drum using a crack spoon.
Gangster white kid #1 "Yo Ceejaylolo! What iz dat noise I keep hearin in dis gangsta ass song mayne!??"
Gangster white kid #2 "Mayyynnee I don't know what dat iz brah! Dat shit sound like its gosta be a trellaphone!!"
Gangster white kid #2 "Mayyynnee I don't know what dat iz brah! Dat shit sound like its gosta be a trellaphone!!"