So, really, how many of us are originally from Pittsburgh?? It's uncanny.
I knew I hadn't seen any Pittsburghers in all my lurking, but there is an uncanny number of "at one time" 'burghers! I'm just the opposite, not a native but have been here half my short life.

The only striking Pittsburgh regionalism I haven't seen mentioned is the use of "slippy" instead of "slippery".