Define Things Are Getting Too Spicy For The Pepper Meaning

Things Are Getting Too Spicy For The Pepper
A quote made by Francine Smith from American Dad. She tried many times to write a quote that was worth remembering after her death, and this was what she decided upon, with the help of Klaus the fish.

Person 1: I don't want to eat your home-cooked food anymore!
Person 2: Why don't you like it? Do you want me to make chicken parmesan more often, since you like it so much?
Person 1: No! Your food is just terrible.
Person 3: Ooh, things are getting too spicy for the pepper here!
By Jazmin