Whistle Tips 

A quick and discrete addition to any muffler, the whistle tip is welded inside the muffler to produce an ear drum piercing noise upon acceleration in a car. This noise can be heard for nearly a mile. A recent craze started on the sreets of Oakland by Bubb Rubb (see definition), often described an going "woo-woo."

Nearly every muffler shop in Oakland is now installing whistle tips in a recent fad started ion the streets.

Whistle Tips by Dredogeast October 22, 2003

whistle tips 

it makes a screeching noise inside the eshaust pipes of a car.....the whistles go WOOOO, when you want a WooWoo, its a woowoo, ya know what im saayin, its just fo decorashon man just fo decorashon, thats it an thats all, the do it fo decorashon, but...its only in da monin, yo supposed to be cookin breakfast or somethin, so its like an alarm clock...WOOWOOOOO

ya dawg, i got this tight ass whistler tip installed by bubb rubb and lil sis yesterday, it makes the sound: WOOWOOO

whistle tips by E dawg February 15, 2004