There are a few reasons why pigs are called pigs. One reason is that the word pig comes from the Old English word pic, which means wild boar. Pigs were originally wild animals, and they were called pic because they looked like wild boars. Another reason why pigs are called pigs is because of their eating habits. Pigs will eat just about anything, including garbage and food that other animals wouldn't touch. This makes them seem greedy and gluttonous, which also contributes to the name pig.