As greedy as a Pig

Brick top says

Feed them to pigs.

You've got to starve the pig for couple of days. Shave the head of the victim and pull the teeth out for the sake of the pigs digetsion. They will go through bones like butter. You need atleast 16 pigs to do the job in one sitting. So beware of any man who keeps a pig farm. They will go through a body of 200 pounds in about 8 minutes. A single pig can consume 2 pounds of uncooked flesh in one minute.

and Hence the Expression

"As Greedy as a Pig"

courtesy : Snatch 2000