1. A Chunkington is a person who is Overweight, Obese or just generally Fat.
2. Refer to: Heffer, Fatty, Fat Bast*rd/B*tch.
1. Omg, what a chunkington! (context: as you point at a fat person)
2. Stop being such a chunkington (context: somebody is eating too much)
3. You're such a chunkington (context: obvious)
4. Just replace Fatty with the word Chunkington, and it usually works.