“Son of Stimpy” (a.k.a. “Stimpy’s First Fart”) is an episode of the second season.
Before Christmas, Stimpy breaks wind, he believes that he has given birth. He tells Ren about the incident, but Ren won’t believe him. Soon, “Stinky” runs away and Stimpy searches for his butt stinkiness friend, Stinky in his snowy adventure.