Angel is shown to be fluent in several languages other than English throughout the show.

In 1.10 Parting Gifts, he speaks Chinese
In 1.16 The Ring, he speaks Spanish, Italian and Russian.
In 3.08 Lover’s Walk, …

The word “bad” is said 12 times during the episode 4.05 Beer Bad.

‘Big Bad’ is Buffyspeak for a villain who is tough to beat (though not unbeatable). The Big Bads on the show were usually the main villains of each season (The …

When vampires are killed (via wooden stakes, sunlight or beheading), they turn to dust. The Scoobies use the word as a verb to describe killing a vampire (i.e. “We dusted …

In 4.04 Fear, Itself Willow guesses that the book from which the frat boys took the occult symbol is written in “Gaelic” (which she can, handily, translate). We later see, however, …

The term hubbub has been used on the following occasions:

5.22 The Gift:

Glory: “So, what’s the hubbub, bub? What do you got against old Benjy?”

3.11 Birthday:

Lorne: “What’s all the hubbub, bub?”

The Cautionary …

The term ‘mook’ has been used on the following occasions…

1.06 Sense And Sensitivity:

Little Tony: “Who’s the mook?”
Angel: “Herb Saunders, Baltimore!”

6.04 Flooded:

M’Fashnik: “You have cost me, Slayer.”
Buffy: “I cost *you*? That’s a …

Phlebotnum, a term coined by David Greenwalt according to Joss Whedon’s commentary for 1.02 The Harvest, means any magical or mystical force or event that arises in the process of inventing …

In 1.03 The Witch, Willow called herself, Xander and Giles the ‘Slayerettes’. This term wasn’t used again until the episode 4.13 The I In Team, when Spike says:

“This bit of business wraps …

“Southpaws” is mentioned a couple of times on both Buffy (4.17 Superstar) and Angel (3.18 Double Or Nothing). Buffy remembers advice from Jonathan to watch out for southpaws and Angel thought Connor …