Do you understand, do you feel the same ?

[venta]

Honestly, you wait for ages then two come along at once.

Following the croggy incident last week, at the weekend I was hanging about in Wales with my dance team.

Venta: Blimey, I'm absolutely nithered.
Ang: You're what?

Now, Ang is usually quite reliable. She knew what a croggy was and everything (I checked). Fortunately, my team's Sheffield contingent came to the rescue and assured me that they not only knew what I meant, but were nithered too.

So... current working hypothesis is that it might be a Yorkshire word. Any offers?