Weasel Stop is a 1955 Foghorn Leghorn animated short film from Warner Bros. released in 1956 and directed by Robert McKimson. The cartoon is unusual in that a different dog (instead of the Barnyard Dawg) is used as Foghorn's nemesis. The title is a pun on the phrase "whistle stop".
A shaggy dog (whose voice resembles that of Andy Griffith) is the guard at a farm's chicken coop when the lip-smacking Willy Weasel comes along, intending to gain access to the chickens. And, never one to side with a canine, Foghorn Leghorn opts to help the weasel by trying to violently remove the guard dog.