I think "buzz" is used a lot to people near Manchester too.
People from Bolton (UK) get very defensive about the exact pronunciation of Bolton too. I heard this conversation several times between two colleagues:
Colleague 1 (c1): "... that's because you're from Bolton"
Colleague 2 (c2): "It's not Bolton, it's Bolton"
C1: "What? That's what I said, Bolton"
C2: "No, you said Bolton, it's Bolton"
C1: "You're saying the same thing, Bolton"
C2: "No, Bolton"
C1: "That's what I'm saying!"
Me: "what. the. FUCK"
If you've ever seen Brooklyn Nine Nine and Jake would say "Nikolaj" and then Charles would correct him saying the exact same thing, it was exactly like that, but saying "Bolton" instead.
Also I heard several people from Wigan say "A packet of crisp" and not "A packet or crisps".
Also forgot about this one: I used to live in South Wales, and people would say "Premark" instead of "Primark". They'd think I was the weird one for saying it like Primark.