Sweaty Sock is a slur used to describe Scottish in a derogatory way. Cockney rhyming slang -- Jock = Sweaty Sock
The word Sweaty Sock is a racial slur that has been used historically to degrade and dehumanize scottish. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to scottish. If you are unsure about whether or not it is appropriate to use the word Sweaty Sock, it is best to err on the side of caution and avoid using it in any situation.