"The One With The Rumor" is the ninth episode of the eighth season of Friends, which aired on November 22, 2001.
Monica tells her friends that she will not be cooking a turkey for Thanksgiving because of the large amount of leftovers it will create, because Chandler hates Thanksgiving food, Rachel's pregnancy is making her repulsive to poultry and because Phoebe is a vegetarian. Joey protests, and announces that he will eat the entire turkey himself if necessary. Monica agrees, and Joey finishes the nineteen-pound turkey by the end of the episode.
Monica tells Rachel that she has invited over an old high-school friend of hers and Ross's called Will Colbert, describing him as "really overweight" and points out that she was known as "his thin friend" to the fact that Monica was also overweight as a child. Rachel does not remember him. Will arrives with a thin figure, pointing out that he lost over 150 pounds and is "going to be on one of them Subway sandwich commercials". When finding out that Ross will be joining them for dinner he is glad that he'll get to see him again, though when Monica informs him that Rachel will be coming too he instantly becomes disappointed, and points that he hates her because she constantly made fun of him during high school.
Throughout dinner, Will is hostile to Rachel, and eventually refreshes her memory about her making his life miserable, she tries to apologize and generally feels bad until he reveals that during high school, he co created a club against her called "The I Hate Rachel Green Club", when asked who the other co founder was he reveals that Ross was, surprising Rachel. Will also reveals that during high school they made a rumor about her being a hermaphrodite. Not only was Rachel oblivious about the rumor, but she was also oblivious about everyone in her school (and even Chandler's school) knowing about it. She reacts tearfully, claiming she never hurt Ross in high school, until Monica reminds her that she started a rumor of her own that Ross made out with the school's 50-year-old librarian, Mrs Altman. Ross however freaks out and inadvertently blurts out that it's in fact the truth. When Ross and Rachel argue, Monica reminds them that they are having a child together and that some things are more important than high school. After hearing this Will is shocked but also proud that he's not marrying her. He attempts to high five Ross, but Ross declines. When attempting to high five anybody in the room Will gets a hug from Phoebe (who throughout the whole episode develops a tiny crush on him).