If someone is in a bad situation, "rubbing salt into the wound" means to aggravate that situation: make it worse. This is an idiomatic extension of the actual physical pain one experiences if an open wound is exposed to salt.
Have you ever gotten salt or salt water into a cut or scrape? It hurts, doesn't it? This saying means that you're doing or saying something that makes an already "sore" place hurt even worse. An example might be if a friend just broke up with their girlfriend or boyfriend, and you say "Wow, your breath sure stinks - I can see why they left." They could say, "Gee, why don't you just rub salt into my wound?"
To make an injury or insult worse, like how salt hurts open wounds. Have you ever cut your anything and walked into the ocean?
during the ealier centuries, when England WA developing their navy, most sailors where pressganged into service. while at sea, punishment was often lashes with a cat'o'nine tails. These whippings would usually break open the skin, and salt was rubbed into the wound to help stave of infection. Of course, rubbing salt into an open wound would sting like crazy. So in modern times, rubbing salt in your wound, generally means just adding more pain and suffering.
Erase is another word for rub out.
pleural rub
The term rub the wrong way is actually another way of saying aggravate, annoy, bother, disturb or irritate. It based on the idea if you rub a cat's fur the wrong way, you annoy it.
for meat they would salt cure it.....basically just rub salt on it
"To rub one out", it means to masturbate.
Friction
Rubbing is pretty much what it sounds like. You are going to take your hands and rub the spice mixture into the meat. The rub mix is going to be a mixture of salt, sugar and spices.
Club soda with a little salt dab it not rub
As an old tradition or mabe myth, we rub babies with salt so when they grow up, they won't have a bad scent, from feet scent to sweat scent, no bad scent at all
you have to put tomato juice and then you rub it with some limonand salt