Plot summary
Elaine lends out Mr. Pitt's tennis racket to curry favor with an interviewer for a job, but cannot get the racket back when tennis turns out to be life-or-death to her. George's girlfriend, a model who eats voraciously, runs off to the bathroom after every dinner, and he needs a bathroom matron to find out if she has an eating disorder. Kramer reluctantly reconciles with his mother because she has this job, and the reunion reveals Kramer's first name, Cosmo. Since Jerry's girlfriend does not laugh, he wants to switch to dating her roommate; George realizes he can only pull this off in one fell swoop by asking both roommates for a ménage à trois.
Credits
Adapted from Wikipedia contributors, Seinfeld season 6. HTML formatting and reference markers removed.