[After appearing in a recruitment film for Springfield Nuclear Power Plant, Homer decides to join the Screen Actors' Guild. He needs his middle name for the S.A.G. form, but only knows his middle initial.]
Seth: You know, Homer, your mom was a pretty groovy chick.
Munchie: And a demon in the sack! [They both chuckle.]
Grampa: Oh, you heard about that, eh? [He laughs.]
[Seth and Munchie go silent for a moment, glance at each other, and then laugh along with Grampa.]
A young Homer is dancing naked at Woodstock, to the amusement of Mona and the anger of Abe.
Abe: Shame on you, boy! Put some damn pants on and then pull 'em down, 'cause it's time for a spankin'!
Homer: Hear ye! Hear ye! The intergalactic jester proclaims this conformity factory closed!
Principal Skinner: Hmm. Fifteen years of loyal service, and this is how they tell me... A jester with an invisible proclamation.
Lisa: Dad, do you mind? Your feet are really close to my potato.
Homer: Your potato? You can't, like, own a potato, man! It's one of Mother Earth's creatures.
Marge: Homer, excuse yourself.
Homer: No way, narc! Bodily functions are a natural thing.
Bart: Not to mention hilarious!
[Having embraced the hippie lifestyle, Homer tries to get Marge to go along with him.]
Homer: Marge, you've got too many hang-ups. Like, the whole shaving trip. Come on, I want to see those legs all furry and gross!
Marge: That ain't gonna happen, bub.
Homer: Well, at least lose the bra. Free the Springfield Two, Marge! Free the Springfield Two!
Marge: [grumbles] I think you've had too much strawberry wine.
Kent Brockman: A spokesman attributed the production shutdown to a half-witted oaf.
Homer: Aw, it was sweet of those guys to blame an oaf, but really it was my fault. I just don't have the discipline to be a hippie.
Marge: Oh, does this mean you're going to start showering again?
Homer: Perhaps, in time.
[While cleaning house, Marge notices an empty space where the couch is supposed to be. Then she hears a scream coming from outside. Investigating, she goes outside and sees that Maude Flanders is screaming at the sight of Homer lying naked on the couch, playing with his Frisbee.]
Maude: [still screaming] Help! Oh, I've never seen anything like- [covers eyes] My eyes have been soiled!
Homer: [standing up facing Maude] Come on, Maude, the human wang is a beautiful thing!
[At Groovy Grove, Homer tries to get Seth and Munchie to go along with him to freak people out.]
Seth: Yeah, an old-time freak-out sounds tempting, Homer, but [sighing] we've got a big order to fill.
Homer: [sarcastically] Fine. I guess the juice business is more important than the ideals our hippie forefathers refused to go to war and die for.
Munchie: I suppose we could duck out for a couple of hours.
Seth: Hey, we'll call it a business trip and write off the mileage!
Homer: Now your freak flag's flyin'! Let the freak-out begin!
[After his Frisbee ruins a whole batch of juice, Homer resolves to make things right by re-making the batch at night while Seth and Munchie sleep. Homer greets them first thing the next morning.]
Homer: [to Munchie] Good morning, starshine! [to Seth] Seth.
[Seth and Munchie notice the empty field and gasp.]
Munchie: What's going on?
Seth: What happened to our crops?
Homer: I picked 'em, juiced 'em, and delivered 'em to every store in town. Your business is saved!
Munchie: But there weren't enough vegetables left to fill that order!
Homer: That's what I thought at first. But then I found the other garden behind the barn! The one with the camouflage netting.
Seth: Homer ... those were our personal vegetables.
Homer: "Well, now the whole town can benefit from their nutrients.
Wiggum: Attention, hippies! Come out peacefully so we can smash your drug mill and all your worldly possessions!
[Groundskeeper Willie, at the elementary school, tosses back a bottle of the hippie juice.]