1. The driver chocked up the back wheels so that the car could not run down the slope.

2. Their classroom is chocked up with desks and chairs.

3. The town centre was chocked up with traffic.

4. The channel had chocked up with sand so that boats couldn't use it.

5. The cupboard is chocked up with his books and papers.

6. I want you to go to hospital for a general chock up.