Noun

1. Any of several mammals of the genus Sus, having cloven hooves, bristles and a nose adapted for digging; especially the domesticated farm animal Sus scrofa.

   • The farmer kept a pen with two pigs that he fed from table scraps and field waste.

2. (specifically) A young swine, a piglet.
3. The edible meat of such an animal; pork.

   • Some religions prohibit their adherents from eating pig.

4. Someone who overeats or eats rapidly and noisily.

   • You gluttonous pig! Now that you've eaten all the cupcakes, there will be none for the party!

5. A nasty or disgusting person.

   • She considered him a pig as he invariably stared at her bosom when they talked.

6. A dirty or slovenly person.

   • He was a pig and his apartment a pigpen; take-away containers and pizza boxes in a long, moldy stream lined his counter tops.

7. A police officer.

   • The protester shouted, “Don't give in to the pigs!” as he was arrested.

8. A difficult problem.

   • Hrm...this one's a real pig: I've been banging my head against the wall over it for hours!

9. A block of cast metal.

   • The conveyor carried the pigs from the smelter to the freight cars.
   • After the ill-advised trade, the investor was stuck with worthless options for 10,000 tons of iron pig.

10. The mold in which a block of metal is cast.

    • The pig was cracked, and molten metal was oozing from the side.

11. A device for cleaning or inspecting the inside of an oil or gas pipeline, or for separating different substances within the pipeline. Named for the pig-like squealing noise made by their progress.

    • Unfortunately, the pig sent to clear the obstruction got lodged in a tight bend, adding to the problem.

12. a pigeon.

Verb

1. to give birth.

   • The black sow pigged at seven this morning.

2. To eat greedily (also pig out), or in a noisy or dirty fashion.

   • They were pigging on the free food at the bar.