[chris_va]

But we all know which UW is the right one :)

[acchow]

Can't tell if this is clever sarcasm or you mean Waterloo...

[jcagalawan]

Americans will probably think of Washington first.

[timothya]

This is exactly what I'm talking about. No one knows what each other is talking about when saying "UW". Looking at chris_va's profile, it appears he was talking about the University of Washington. Most of the US probably thinks of UW that way, though in Silicon Valley I've met a lot more people from the University of Waterloo than from the University of Washington.