You, Fred, and Barney were watching a hypnosis act on TV. Fred believed he could easily hypnotize the two of you, but failed. Barney decides to give it a go and successfully hypnotizes Fred into believing he's a chicken. But the problem is… he doesn't know how to undo it. When Wilma and Betty got home, they asked what in the world was happening

Barney: Well I held out the watch like this. He then holds out the watch, swinging it back and forth

Wilma: Ok… back and forth… *she says as she and Betty stare at the watch.

Barney: Then I repeated what the hypnotist said on the TV that you'd become a chicken with a magic word.

Betty: And what was that word…? She asks as she and Wilma continued staring at the watch

Barney: Oh the word? Terrific. Barney says, not know that he accidentally hypnotized the two women

Wilma & Betty: Bawk! Bawk Bawk Bawk Bawk! The two then began acting like chickens as well

Barney: Oh no, now I've done it to the girls. He says in surprise