In the cafeteria there is a poster with an alien on it that says, "Have You Seen Me?"

This is the only episode that was actually made with construction paper.

Kyle: Ike, you can't come to school with me.
(Ike makes baby noises.)
Cartman: Yeah, go home you little dildo.
Kyle: Hey, don't call my brother a dildo!
Stan: What's a dildo?

Kyle: Can I please be excused from class?
Mr. Garrison: I don't know Kyle. Did you ask Mr. Hat?
Kyle: I don't want to ask Mr. Hat. I'm asking you.
Mr. Garrison: Oh, I think you should ask Mr. Hat.
Kyle: Mr. Hat may I please be excused from class?
Mr. Hat: Well Kyle, No! You hear me! You go to Hell. You go to Hell and you die!
Mr. Garrison: I guess you'll have to take your seat Kyle.
Kyle: Damn it!
Cartman: Ha ha! Mr. Hat yelled at you!

Kyle: Dude, he's farting fire!
Stan: It's the alien anal probe. It's shooting fire from Cartman's rectum.
Cartman: No, that was just a dream.
Mr. Garrison: Eric, do you need to sit in the corner until your flaming gas is under control?

Stan: Well, we can't do anything for now, that fat bitch won't let us.
Ms. Crabtree: What did you say?
Stan: Uh, I said that rabbits eat lettuce.
Ms. Crabtree: Oh. Well, yes, they certainly do.

Farmer: People's been saying they've been seeing UFOs around.
Officer Barbrady: UFOs? (Laughs)
Farmer: Yeah, and black army CIA helicopters and trucks.
Officer Barbrady: That is the silliest thing I've ever heard. (Helicopters fly by above them)
Farmer: What was that?
Officer Barbrady: That, that was a pigeon.

Stan: Cartman, there's an 80-foot satellite dish sticking out of your ass!
Cartman: Sure, you guys, whatever.

Cartman: Mom! Kitty's being a dildo!!
Cartman's Mom: In that case, I know a little kitty kitty who's sleeping with mommy tonight!

After Stan vomits from Wendy talking to him, the vomit disappears in a few shots. When the boys are first seen in the cafeteria, Stan is in front of Cartman. When Kyle says, "Hey look, there's Wendy Testeburger," Stan is now behind Cartman.

Chef says he's got twenty minutes before Sanford and Son is on, but the watch shows fifteen minutes to the hour (unless Chef is watching Sanford and Son on TBS, which, as of 2009, hasn't aired their programming fifteen minutes to the hour since the 1990s, though there have been rare occasions).

Kyle: Ike! Do your impersonation of David Caruso's career!

Kyle is telling Ike to take a dive down, just as actor David Caruso's career took a dive after he left the show NYPD Blue to pursue roles in films. Caruso's career has since recovered.

Cartman: (singing)
I love to singa!
About the moona and June-a and the springa
I love to singa
about a sky of blue-a or a tea for two-a…

Cartman's performance here is based on a Merrie Melodies animated short called "I Love to Sing-a", which was in turn based on a song written by Arlen and Harburg, and performed by Al Jolson and Cab Calloway.

Chef: Oh, boy. The aliens are going to make first contact. Hey, down here, we are ready for your wisdom! (looks at his watch) And you've only got 20 minutes before Sanford and Son is on.

Sanford and Son was a classic TV sitcom that aired from 1972 - 1977.

Cartman: Well, I was standing out in a field, and I had this huge satellite dish sticking out of my butt. And then there were… hundreds of cows and aliens, and then I went up on the ship and Scott Baio gave me pinkeye.

Scott Baio is an American actor best known for playing "Chachi" on the sitcom, Happy Days.