"You can call me Charlie. But do not call me late when there are scones about."

What is the joke in the following sentence from the Simpsons,season 17 episode 15.

You can call me Charlie. But do not call me late when there are scones about.

by Ricky Gervais, English comedian who produced and starred in The Office UK.


Solution 1:

It is a zeugma, using "call" in two different senses.