Lou is french for water, Chamber pots had water to keep solids suspended. When the bedroom pot was full it was customary to shout “Guard d lou” before heaving out the window. Can you extrapolate?
If that fails, with a safety razor, shave a 2inch strip from navel down. if right handed set fire to left pubic fur, when the lice run across the bare patch, you stab them with a ice pick!
do you know why men’s rooms on the Eiffle tower are free and women have to pay