What does sweat like a pig mean and why?

Answer 1

The phrase "Sweating like a Pig" means sweating profusely. This sounds illogical, as pigs (the animal) have ineffective sweat glands, but the term is derived from the iron smelting process. After pouring into runners in sand, it is allowed to cool and is seen as resembling a sow and piglets, hence "pig iron". As the pigs cool, the surrounding air reaches its dew point, and beads of moisture form on the surface of the pigs. "Sweating like a pig" indicates that the pig has cooled enough to be moved in safety. it just means that when a pig is hot it rolls in mud.

Answer 2

They have no sweat glands and therefore cannot sweat. Why this is so is not entirely clear. It is probably a trait that was slowly filtered out genetically over time to reduce the threat of dehydration. It is easier to find some nice wet cool mud than it is to try and draw water from it.

Answer 3

pigs sweat a lot because they have a lot of fat

That is completely incorrect. Pigs do not sweat like humans, or pant, like a dog. They have small glands in their legs. This is why they love mud. Mud, esp. wet mud, is cool in temperature, and feels great on a warm piggy body. It also works as a sunscreen. Pet micro pigs also enjoy a mud bath, but are just as happy to take a dip in their clean, cool 'kiddie' pool.

Answer 4

because they were made that way