Willow: "Old reliable? Yeah, great. There's a sexy nickname."
Buffy: "Well, I didn't mean it as..."
Willow: "No, it's fine, I'm Old Reliable."
Xander: "She just means, you know, the geyser. You're like a geyser of fun that goes off at regular intervals."
Willow: "That's Old Faithful."
Xander: "Isn't that the dog that the guy had to shoot...?"
Willow: "That's Old Yeller."
Buffy: "Xander, I beg you not to help me."