Any speech that has been slurred from drunkenness, distorted by lousy loudspeakers, or just rendered incomprehensible by other means. Refers to the "whaa-whaa-whaa" trombone effect from old Peanuts TV specials, indicating when an adult was speaking. Originally used in this context Feb. '06 on the DCRTV.COM (Washington area radio and television) website .
(Loudspeakers at Philadelphia's 30th Street Amtrak station) "Whaa-whaa-whaa Track 6".
Ed: Sounds like they hired a Charlie Brown Teacher to do the announcements.