In one scene, the bouncer refers to Spike as "a Billy Idol wannabe," and Buffy starts to say that Billy Idol actually stole the look from him (implying Spike had told her this in conversation at some point). In Season Five's Fool for Love (2000), Spike's resemblance to Billy Idol was depicted (though not acknowledged in dialogue) during his flashback fight with the Slayer Nikki Wood in 1977, at which time Spike's attire and hair mimicked Idol almost perfectly, several years before Idol's fame.
The female vampire that accosts Spike in the Bronze suggests "I take him, you take her?" while looking at a couple, just as Drusilla did in Crush (2001).
This line of Anya's was cut when she tries to explain why she is in Spike's room: "I... am here, obviously, because of the reason which I am about to tell you, with the following words, and that reason is... uh, clearly and obviously too, um... sex."
Spike's bedroom wall in Xander's apartment, has a framed of the picture "Lunch atop a Skyscraper" (1932). The photograph was taken on September 20, 1932, of eleven ironworkers sitting on a steel beam of the RCA Building, 260 meters above the ground, during the construction of Rockefeller Center in Manhattan, New York City. It was arranged as a publicity stunt, as part of a campaign promoting the skyscraper.
Xander says that Spike is "cool as Cool Whip". Cool Whip is an American brand of whipped topping, introduced in 1965. It can maintain its texture, without melting, over time.