Elaine and Jerry, at a movie with their respective dates Tony and Jane, fail to meet up. Elaine and Jane sit in neighboring bathroom stalls. Elaine has no toilet paper, but Jane refuses her pleadings to "spare a square" or even one ply, and leaves Elaine to her fate. After hearing both Jane and Elaine vent over the incident, Jerry connects the dots. He realizes Elaine will recognize Jane's "flinty" voice if they all go on a double date they planned.
Meanwhile, Kramer uses Jerry's phone to prank call a phone sex line as "Andre". As he confuses the operator, "Erica", Jerry listens in and thinks she sounds familiar. Jerry is perturbed when Kramer calls Jane's voice "flinty" as well.
Elaine denies that she is superficial for dating Tony, who is an airheaded hunk—a "mimbo"—and an adrenaline junkie. George has become Tony's groupie, copying his backwards baseball cap and looking for any excuse to hang out. He eagerly offers to make sandwiches to go rock climbing together, but becomes jealous when Kramer also gets invited. George gushes over being friends with a "cool guy", and takes offense when Kramer suggests he is in love.
Halfway up a rock face, Kramer fearlessly rappels around George, who is frozen in terror and clings to Kramer's leg. Kramer makes George yodel for comfort, and also secure Tony's belay rope, but George lets go while getting a sandwich for Tony. Tony falls and lands face-first on a rock.
At Jerry's, Jane refuses to spare a napkin for him while eating. Elaine arrives, and Jerry urgently disguises Jane's voice by making her chew too many pieces of gum. He claims that this makes her too eccentric for the double date. Kramer and George arrive sheepishly to break the bad news. Elaine finds Tony's face heavily bandaged, and desperately probes whether he will suffer deformities. Elaine does not let George in to apologize, and Tony cuts him loose. Conveniently for Jerry, the double date is called off.
Kramer meets Jane, and is immediately sure that her voice is "Erica"'s. At Monk's, Elaine admits that she only cares about Tony's looks, but wonders if she can learn the true meaning of love. Kramer asks "Erica" to meet at Monk's, and Jane arrives, causing Jerry to jump to conclusions. Jane takes offense, but Elaine recognizes her voice when she refuses to spare any tissue. Elaine beats Jane to the bathroom and steals all the toilet paper, then refuses Jane's begging from the next stall.
After extricating herself, Jane dumps Jerry and also Kramer—in "Erica"'s voice.