Pig is one of those animals that are unlikely to invoke any positive sentiments in the mind. The sentence He is a pig can mean two things. It could mean that the person is very dirty. Or it could mean that the person eats a lot. Needless to say, nobody will be happy if you call them a pig.
The expression pigheaded means obstinate. A pigheaded person is someone who is very obstinate. It has a negative meaning.
- You can’t make him change his mind. He is very pigheaded.
To pig out is to eat or drink too much.
- Don’t pig out on those pizzas if you want to lose weight.
- She likes to pig out on chocolates and cakes so I wasn’t surprised when the scales broke while she was weighing herself the other day.
- Every weekend, the boys would head for the city and pig out on Colas and burgers.