loupin:
From a Scots word for jump, this is used to mean extremely painful: “Ah bet yer heid’s lupin efter last night.”
It can also mean infested (as in “Look at that wean clawin’ her heid. She must be loupin.”) or very busy with, full of: “The toon’s loupin wi’ Welsh rugby supporters.”
a Brit different 
That’s it, I want your accent.
Haha! I love that one. 🙂
How did this not hit my reader? I have been missing my word of the week. Still laughing that the Vet thinks you are American.
When I hear ‘loupin’ I think of nits.