I think that mkkreuk in particular will like these

1. What do you call a Chav in a box?
Innit.

2. What do you call a Chav in a filing cabinet?
Sorted

3. What do you call a Chav in a box with a lock on it?
Safe.

4. What do you call an Eskimo Chav?
Innuinnit.

5. Why are Chavs like slinkies?
They have no real use but it's great to watch one fall down a flight of stairs.

6. What do you call a Chavette in a white tracksuit?
The bride.

7. You're in your car and you see a Chav on a bike, why should you try not to hit him?
It might be your bike.

8. What's the difference between a Chav and a coconut?
One's thick and hairy, the other's a coconut.

9. What's the first question at a Chav quiz night?
"What you lookin' at?"

10. How do you get 100 Chavs into a phone box?
Paint three stripes on it.

11. Two Chavs in a car without any music. Who's driving?
The police

12. What do you call a Chav with 9 GCSEs?
A liar.

13. What do you say to a Chav with a job?
Can I have fries with that?

14. What do you say to a Chav in a suit?
Will the defendant please stand

15. Why is 3 chavs going over a cliff in a Nova a shame?
A Nova seats 4

16. What do you call a 30 year old chavette?
Granny.

17. What do you call 100 chavs at the bottom of a river?
A start.

18. Why did the Chav cross the road?
To start a fight with a random stranger for no reason whatsoever.

19. What do you call a Chav at college?
The cleaner.

20. Two chavs jump off beachy head, who wins?
Society