Green’s Dictionary of Slang

wool n.2

[abbr. woolly-back under woolly adj.2 ]

an unsophisticated person, a peasant.

[UK]K. Sampson Awaydays 3: It’s doing everyone’s swedes in that the Scousers still see us as Wools.
[UK]K. Sampson Outlaws (ms.) 13: Big crazy wool from Warrington, he were.