wool
A wool is short for the Liverpool term Wooly Back which is a derogatory expression for people from lancashire and cheshire, originating from the early 1900's when the population of lancashire used to wear a form of sheepskin coat and was considered to be a sheep shagger by scousers.

This of course has not changed much, except the lancashire and cheshire fashion sense has got worse
Wool A liverpool football song from the 1970's goes

Ther's a wolly over there
baggy kecks and feathered hair
with a 3 start jumper half way up his back
thats a f8cking wolly back