The Zeppo

In which Xander gets threatened, insulted, laid, heroic, doughnuts, wheels, pummelled, and cool. Mmmm, doughnuts. (Exhibit G in the 'Xander is Hot debate)

Official back-of-box synopsis:

Is Xander losing his cool? When a series of incidents lead Cordelia to remark that he is useless compared with his friends, who are Slayers and werewolves, Xander sets out to prove her wrong. But joining a gang and fooling around with Faith might get him in more trouble than ever.

From the old WB Buffy website:

ODD MAN OUT - Xander's lack of slaying superpowers has him feeling painfully expendable, but his quest to prove he's cool leads him to an unforgettable night that finds him consorting with fast women, raising the dead and rolling with a dangerous crowd that could put Sunnydale in a world of hurt. Meanwhile, Buffy, Giles and the rest of the crew engage in a furious battle with an all-female apocalypse cult that intends to reopen the Hellmouth and bring about the end of the world.

Links:

This episode's page at http://www.restlessbtvs.com/, the Restless BTVS Trivia Guide

This episode's page at http://www.vrya.net/bdb/, the Buffyverse Dialog Database

Cross-reference:

episodes Featuring Major Moments In Xander's Love Life:

• Teacher's Pet
  The teacher he's hot for is a preying matis
• Inca Mummy Girl
  Ampata nearly sucks the life out of him
• The Harsh Light Of Day
  Anya, basement, cran-apple juice everywhere
• this episode
  he loses his virginity: everyone's looking the other way

episodes in which characters lose their virginity:

• Surprise
  Buffy
• Graduation Day (part 1)
  Willow
• this episode
  Xander

Cast:

• Sarah Michelle Gellar as Buffy
• Alyson Hannigan as Willow
• Nicholas Brendon as Xander
  

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• Anthony Stewart Head as Giles
• Charisma Carpenter as Cordelia
• David Boreanaz as Angel
• Seth Green as Oz
• Saverio Guerra as Willy
• Eliza Dushku as Faith
• Channon Roe as Jack O'Toole
• Michael Cudlitz as Bob
• Darin Heames as Parker
• Scott Torrence as Dickie
• Whitney Dylan as Lynette
• Vaughn Armstrong as Cop