Naked clog fighting. Let me say that again: NAKED CLOG FIGHTING.

This existed. It was real. 

You're welcome. 

From such beginnings sprang the combat sport of clog fighting, or ‘purring’ as it was known in Lancashire. An illegal sport, purring involved two men kicking each other until one admitted defeat or blood was drawn. Sometimes the men were naked, and there was also a variation in which the men would sit on either side of a large barrel, their feet dangling inside, and kick each other inside the barrel. Often people would gamble upon the outcome. Grudges could be settled this way – the Lancashire phrase “Ah’ll gi thi some clog toe pie” could easily lead to a purring match, and some very sore shins.