Pistol Pete is a character from the animated series, Goof Troop.
Pistol is the youngest child and only daughter of Pete and Peg and the younger sister of P.J. She is extremely energetic and hyperactive. Pete is also shown to have a very soft spot for her, as he spoils her and pays her absurd amounts of money for no reason. At the beginning of the series, she is 4 1/2 and in preschool, but turns six at the end of the series. She has long red hair in pigtails with yellow ribbons, blue eyes, a black nose and wears a white long-sleeved blouse with a pink collar, sash and cuffs, yellow knee-length skirt, frilly red or white panties, pink socks and white Velcro shoes. Pistol's name is generally considered to be a play on one of Pete's aliases in some classic cartoon shorts.
Pistol is generally a supporting character. She is often seen getting into messes, often having to be bailed out by Max and P.J., or even Pete. She often annoys P.J. into playing with her; however, the two are seen to work together sometimes.
For reasons that are unknown, neither Pistol nor her mother appear in the films, nor is either one of them mentioned, despite being based on Goof Troop. A common fan theory suggests that Peg and Pete got divorced between the end of the series and the first film, with Peg taking custody of Pistol, but the most likely reason for her absence is that she (as well as Peg) simply didn't factor into the father-son story that the movie wanted to focus on between Goofy and Max, at least not in any meaningful enough way to warrant an appearance in the movie for her.
Her name is a play on one of Pete's names in the original Mickey Mouse cartoons, "Pistol Pete."