eat like a pig
A person who looks like a sausage roll and acts like they were born with a fork in their hand.
My uncle eats like a pig. He's got more meat on his bones than a BBQ truck.
My friend eats like a pig. I swear he’s trying to out-eat a pig at the county fair.
My sister eats like a pig. She once ate a whole cake in one sitting and cried about it later.