Wiktionary
chirpiest
a. (en-superlativechirpy)
Usage examples of "chirpiest".
And even the chirpiest grandpups wouldn't sport playfully with him in the dewy grass, since they knew that even when Dazzle pretended to be fun-loving, he was almost always nursing yet another endless lecture on one of his favorite topics, such as "Why Dogs Shouldn't Eat Their Own Vomit," or "How Will Humans Ever Respect Dogs If Dogs Never Respect Themselves?