Quote from Kelso in Jackie's Cheese Squeeze
Eric: So, hey, Jackie, how's it going down at the cheese shop? You must be so tired from giving it away at the mall. [Donna, Fez & Hyde laugh] Fez: What are you laughing at? Hyde: I don't know. What are you laughing at? Fez: I don't know. Fez & Hyde: What are you laughing at? Donna: I don't know. Kelso: [laughs] Donna, Fez & Hyde: What are you laughing at? Kelso: I really don't know.