A name given to a woman's vagina, often used in the state of Texas. It is especially used for elderly womens vagina that can widen to at least 4 inches (perhaps a fist) wide.
"Gosh, Susan, you should have seen grandma's ole chirpy last night. She had at least 5 eggs up there!"
chirpy cunt was such a good bird, it's a tragic he had to pass away in season 2