Isn't it spelled 'mannequin?'

Obligatory Simpsons Quote:

Homer: I'll teach Bart about sex the same way I did

(Flashback to Homer as a child watching monkeys at the zoo)

Young Homer: Zookeeper! Zookeeper! Those monkeys are killing each other!

Zookeeper: (Whispering into his ear) They're having sex.

Young Homer: Oh . . . .

I hate getting egg yolk all over my hands, which happens all the time. If this contraption can do that, it might be worth the $7.

Makes me think of the Simpsons when Marge is finding out whether she's pregnant using "Barnacle Bill's Home Pregnancy Test."

Homer did not get Marge pregnant in High School. He was working full-time at Sir-Putt-a-Lots Golf course. That experience could have happened several years after High School.

The show's discontinuity is something everyone has to deal with. Homer graduated in 1974, but he's also shown as a little toddler in 1969 at Woodstock. When a show's been on the air nearly 2 decades, it's bound to happen.