gs: Jane Leeves (Marla) Ilana Levine (Joyce) Rachel Sweet (Shelly) Andrea Parker (Nurse) Estelle Harris (Estelle Constanza)

George's mother throws her back out when she falls down after catching him doing "you know." When George says he'll never do it again, Jerry challenges him to a contest of self-denial, when he accepts, Elaine and Kramer want in on the action, or rather the lack of it.

b: 18-Nov-92 pc: 411 w: Larry David d: Tom Cherones

NOTE: Thanks to this episode, the series won the Emmy for best Comedy, Writing and Supporting Actor (Michael Richards). The episode was based in a real life experience of writer Larry David.
Tom Cherones won the Director's Guild of America Award for this episode. This episode was based on a real contest that Larry David participated in.
TV Guide named this episode, specifically the moment where Kramer says he's out, as the third funniest moment in TV history.