There is a sub-dialect of the Philadelphia accent called "Kenzospeak", or "Kenzo".
Mainly it's just the Philadelphia accent but with a nervous tick. You'll notice a Kenzo (a current or former Kenzington, Fishtown, Port Richmond and even some Frankford residents) right away from two very noticeable things:
Ya'knamean? - A slur of "You know what I mean?" which isn't really a question waiting for a response. It's just a replacement for a pause between sentences.
Just sayin' - This actually does have a meaning. This means "don't question what I just said; I'm just stating a fact that I don't want to argue about."
And of course, there's the pronunciation for Girard Ave. It's not "Girard" it's "JAIR-AHD" or "JUH-AD" or any other way that keeps the R's in Girard silent.