What are some rubbish jokes?

Yo mama is so old, when I told her to act her age she died.
Q: What is green and black, has wheels and flies?
A: A garbage truck.

A police officer pulls up next to a guy unloading garbage out of his pick-up into the ditch. The officer asked, "Why are you dumping garbage in the ditch? Don't you see that sign right there?" "Yes," the man replies. "The sign says 'Fine for Dumping.'"

A doctor at a mental hospital saw a patient fishing in a garbage can. The doctor decided to speak to the patient and play along. "So how many fish did you catch today?" he asked.
"You must be crazy, don't you know this is a garbage can?!"

Man: Am I too late for the garbage pickup?
Garbage collector: No, jump in.

You have to admit, that even in a bad economy, the garbage business is picking up.