Buffy the Vampire Slayer

Xander: Does this look like a Barnes & Noble? Barnes & Noble is a popular book store around the United States. This is funny because two people walk in to check out books and Xander didn't even realize that he and his friends always have meetings in the library.

Xander: A visit from the pointed tooth fairy.
This is how Xander characterizes Angel's visit to Buffy's room while she is sleeping. Traditionally, when children lose a baby tooth, they leave it under their pillow, and while they are sleeping, the Tooth Fairy takes the tooth and leaves money in its place.

Willow: I have to go over to Xander's house just to watch "A Charlie Brown Christmas" every year....Although it is worthwhile to see him do the Snoopy dance.
"A Charlie Brown Christmas" has aired every December since 1965. It was written by Charles Schulz, and features the characters from his "Peanuts" cartoon strip (including Snoopy the Beagle, who does a funny dance when he's happy). Willow, who is Jewish, explains to Buffy that her father might not like seeing crucifixes hung up in her room, since he apparently won't even let her watch this Christmas cartoon on TV.

Background music: Ah! tu sol comandi, amor! [ Ah! Love, you alone guide us!]
When Giles returns to his house to meet Jenny, there is a long-stemmed rose on the door and opera music playing inside. The music is from Act I of Puccini's "La Boheme." As Giles walks upstairs, Rodolfo sings: Oh, beautiful maiden,... ...Oh, how sweet your face looks, its beauty softly kissed by the gentle moonlight. In you, sweet maiden, I see the dreams of love I have dreamt about forever. The climactic point comes when Giles drops the champagne glasses, realizing that Jenny is dead. At this point, Mimi joins Rodolfo and sings: Ah! Love, you alone guide us!

Shop keeper: Sold a couple as New Age paperweights last year. God, just love those New Agers, boy. They helped send my youngest to college.
New Age-ism is a grab bag of mostly fringe spiritual beliefs (including crystals, channelling, reincarnation, pyramid power and banal music) which became popularized near the end of the 20th Century.

Spike: No fair going into the ring unless he tags you.
A reference to the tag team matches seen in professional wrestling. In these matches two teams of two or more fight one at a time. When one wrestler wishes his teammate to take over he must tag his hand before they can trade places.

Xander: I say "Faster, Pussycat! Kill! Kill!"
The 1965 movie Faster, Pussycat! Kill! Kill! is about the murderous rampage of three women. Xander invokes the movie to express his pleasure over Giles going to kill Angelus.

Xander: Those are his everyday weapons. These are his good weapons. The ones he breaks out when company comes to visit.
Various household items are often kept in two classes: everyday and guest. More common examples are dishes or towels that are used only when company arrives.

Angel: It might be handy to have you around if I ever need a really good parking space.
Angel mocks Spike in his current wheelchair bound condition by saying the only thing he's good for is to allow them to park in a handicapped parking space.

Buffy: A no shoes, no pulse, no service kinda thing.
A play on the common policy is restaurants and other public places no shirt, no shoes, no service. Buffy is seeking a similar restriction to keep out the pulseless vampires.