On January 28, 1996, Julia Roberts' character Susie 'Underpants' Moss asked Chandler Bing to call her in 20 years. In the Season 2 episode titled 'The One After The Superbowl,' Susie leaves Chandler in a public bathroom in nothing but his underwear as revenge for lifting her skirt on stage when they were in the fourth grade. 'How can you still be made about that?,' asks Chandler. "Why don't you call me in 20 years and we'll see if you are still mad about this?," replies Susie.
An intrepid Redditor has remembered that the 20 years are up.
It's safe to assume that Matthew Perry, who missed the F.R.I.E.N.D.S reunion last week, didn't call Julia Roberts, who he dated after she made her guest appearance on the blockbuster sitcom.
Here's the scene from 20 years ago: