In my opinion, this is one of the best episodes of the first season. It is hilarious, memorable, all-around great!
This episode has two plots. It starts off with Jesse bringing home a turtle which stopped his bike from potentially being in an accident. He repeatedly says "I love this amphibian" which is funny because turtles are reptiles. Jesse has more ignorant phrases throughout the show. The main plot deals with Danny's mother coming back to check up on Danny, as she doesn't think he can to an adequate job of mending house without his wife. She gets Jesse and Joey's mother to come, and the three offer to move in, unless they can show their responsibility.
Maybe I love this episode because of how hard the guys try to clean the house and save the turtle and whatnot. Very fun, all the way.