What is Chicken coming home to roast?

Meaning:

* "Come home to roost" means that the consequences of one's actions, usually negative, eventually catch up with them.

The humorous twist:

* "Chicken coming home to roast" replaces "roost" with "roast," which makes it sound like the chicken is literally coming home to be cooked.

So, it's a funny way of saying that someone is facing the consequences of their actions, often in a way that is not pleasant.