"I can't believe you said that," Monica muttered in the present, stabbing a potato. "I was a jerk! I had feathered hair!" Chandler defended.
"I tipped the doctor!" Monica yelled back. "Besides, it was an accident... mostly." [S5E8] The One With The Thanksgiving Flashbacks
Ross and Monica took everyone back to 1987. It was the era of "Miami Vice" suits and flock-of-seagulls hair. A teenage, much heavier Monica was desperate to impress Ross’s cool college friend, Chandler. But the night ended in heartbreak when she overheard Chandler call her "Ross's fat sister." "I can't believe you said that," Monica muttered
She started shimmying, the turkey wings flapping rhythmically. "I tipped the doctor
The room went silent as the weight of the "toe incident" hung in the air. Chandler, hurt that his "nubbin" was the result of a botched seduction, stormed off to his apartment.
"I said... you’re great," Chandler stammered, his eyes widening as he realized what he’d just let slip for the first time.