In the Buffyverse, a warlock is a male witch. Xander confirmed this with Willow in Bargaining (Part 2). We saw two warlocks on the show - Michael in Gingerbread and season six’s Rack. Though he doesn’t define himself as such, Ethan Rayne could be seen as a warlock.

In The Zeppo, Jack O’Toole resurrects his friend Bob, who asks, “Walker, Texas Ranger. You been taping ‘em?” The TV show ran from 1993 to 2001 and starred Chuck Norris as a Texan police officer who is an expert in martial arts.

In the season two episode Halloween, a spell by Ethan Rayne turns everyone into their Halloween costumes. Buffy is dressed as an eighteenth century noblewoman and loses her memory of being the Slayer. A frustrated Willow sarcastically asks, “She couldn’t've dressed up like Xena?”Xena: Warrior Princess was a TV show …

The X Files was an influential TV show (1993-2002) following two FBI agents, Fox Mulder and Dana Scully, who investigate the unexplained. It has been mentioned in the Buffyverse on several occasions.
In The Pack, Buffy accuses Giles of trying to “Scully” her (Scully was sceptical about Mulder’s supernatural beliefs). …

In Buffy vs Dracula, Dracula said to Buffy, “You think you know…what you are, what’s to come. You haven’t even begun.” Tara said almost exactly the same thing to the Slayer in her dream in Restless, “You think you know…what’s to come…what you are. You haven’t even begun.”

The Buffy episode The Yoko Factor is named after Yoko Ono. The artist married John Lennon, and was ultimately blamed for the break up of the Beatles. Her son Sean appeared in the Bronze band Cibo Matto in When She Was Bad.

George Lucas’s Star Wars films are a cult phenomenon. They are referenced numerous times in the Buffyverse. The original trilogy included the movies Star Wars (1977), The Empire Strikes Back (1980) and Return Of The Jedi (1983) and the movies The Phantom Menace (1999), Attack of the Clones (2002) and …

Spike told Buffy in Once More, With Feeling that he, “saw a 600 pound Chirago demon makin’ like Yma Sumac - that one’ll stay with you.” Yma Sumac is a female Peruvian singer.

In The Pack, Buffy says of hyena-possessed Xander, “it’s safe to say that in his animal state his idea of wooing doesn’t involve a Yanni CD and a bottle of Chianti.” She’s referring to the Greek keyboard player and composer Yanni, whose speciality is new age music.

In Wrecked, Willow told Buffy that she had to keep “stinky yak cheese” in her bra to perform some spells, though she didn’t specify why.

The Order or Aurelius is a sect of vampires who believe in the prophecies of Aurelius, a twelfth century prophet. His prophecies included the coming of the Anointed One to help the order defeat the Slayer (Prophecy Girl). The sect is led by the Master and includes Darla and Luke …

An augmentation spell is a spell which allows someone to change the world for their own good. In Superstar, Jonathan created an augmentation spell, providing him with the ability to make an alternative universe in which he seemed to be everyones ideal. The downside of the spell is that it …

Some demons have the ability to ‘infect’ those who come in contact with them with an aspect of themselves. In Earshot, Buffy became infected when she absorbed the blood of a telepathic demon and began to read the minds of those around her.

An Ascension is when a mortal or part-demon becomes pure demon, resulting in massive destruction. In Graduation Day (Part 1) Anya revealed she was the only living person to witness an Ascension, and it took a volcano to destroy the resulting demon (Lohesh, a four winged soul killer). In Graduation …

Arashmaharr is a world or dimension in which D’Hoffryn, the head of the vengeance demons, resides. In Something Blue, Anya attempted to summon D’Hoffryn using the spell, “Blessed be, the name of D’Hoffryn. Let this space be now a gateway to the world of Arashmaharr, where demons are spawned.”
In …