Boredom Juice is a poison used by the Gorgs for eliminating garden pests. Anyone who smells it is instantly bored stiff. Anyone affected ends up leaning against something or lying on the ground, their bodies stiff and arms either stuck out rigid in front of them or by their side. Their eyes look like a black "O", unmoving and unblinking. Anyone who is bored stiff is literally so bored that they cannot move and reply to everything anyone says with "Boring," in a monotone voice, no matter how interested they would normally be. The effects of Boredom Juice seem to be universal amongst Fraggles and Gorgs. After taking a few sniffs; the victims clutch their throat and either choke or gag, they whistle a short tune and then their bodies snap rigid with an audible BOING, falling backwards until they hit something to prop up their bodies. Immediately after landing, the individual immediately says, "Boring" in a drawn out, mindless tone.
In "Bored Stiff", Pa Gorg sprays the Rock with boredom juice to get rid of the Fraggles. Wembley, Red and Mokey are all standing by the entrance to the Gorg's garden when the Boredom Juice is sprayed. All three begin immediately sniffing the air, seemingly finding the odor very enticing. Wembley asks "Hey what's that smell?" Mokey answers with an "Mmmmm" shakes her head and keeps sniffing, while Red answers, "I don't know, it smells kind of...." at that moment, in unison, the effects of the poison hit them. They choke, they whistle a short tune and then snap rigid with an audible BOING, looks of surprise briefly on their faces as they fall back against the rock wall, as stiff as a board -- bored stiff. Their pupils are no longer solid black but are now glassy-like, appearing as a black "O" shape with white in the middle. All together in a monotone voice, they finish Red's sentence with "Boooooooorrrrriiiiiinnnnggggggg..." drawing the word "Boring" out. A few seconds after Wembley, Red and Mokey have been sprayed, Gobo and Junior both peer into the fraggle hole in kissing rock and see the three of them lying propped up against the cave wall, bored stiff. To remove any doubt that the boredom juice is effective, the trio once again together say, "Booooooorrrrrrrriiiiiiinnnnngggggg..." in a dull, drawn out tone.
Gobo unsuccessfully tries to "Un-bore" his friends by mentioning things that interest them, to Wembley he mentions their upcoming "Adventurous expedition," to Red a game of tug-a-tails and to Mokey he yells "Heeeeelllllppppp" in her face. All three individually reply "Boring" as Gobo tries to talk to each of them. He gets the idea that the cure is the only way to reverse the effects of the Boredom Juice and races off into the garden to get the cure from Junior. Meanwhile, Junior is suffering from a conscience crisis about using boredom juice on any more of the Fraggles. He decides to get rid of the juice, dumping the contents of the spray can on a flower in the garden, the flower itself becoming bored stiff in the process.
Gobo notices the cure (which Junior had put in his shoe) but seemingly doesn't notice Junior dumping the boredom juice out on the flower. Junior tries to greet Gobo, causing Gobo to change course and run past Junior, stopping right next to the flower. Gobo yells to Junior that it will take more than Boredom Juice to get rid of Fraggles. Just as he finishes speaking he takes a couple sniffs and is drawn by the smell of the flower, asking aloud to no one, "Hey what's that smell?". A couple more sniffs and Gobo grabs his throat gagging, whistles the same tune as his friends and BOING, snaps stiff, also with a very surprised look on his face and falls against the stump that was next to the flower, saying "Boring" right after he falls. (NOTE - Boredom Juice's smell must be extremely alluring, Wembley, Red, Mokey and Gobo all fixate on the odor, repeatedly sniffing until the effects kick in) Junior watches this unfold and rushes over to Gobo, realizing he's too late when Gobo answers "Boring" as Junior tries to warn him about the flower. Junior has a personal dilemma of unboring Gobo or obeying Pa. Junior decides to cure Gobo by singing "Whoops! Feelin' Better!".
The cure works, Gobo picks himself up saying that the song was the most intersting thing he's ever experienced. Gobo and Junior decide to help one another; Junior to get his parents to leave the Fraggles alone and Gobo to unbore his friends. After formulating a plan, Junior Gorg tells Ma and Pa Gorg that he is dying of boredom, and goes through the motions as if he himself had just smelled boredom juice. As he falls to the ground, he lands next to the flower that he had earlier poured the boredom juice on. A couple sniffs later and with a loud BOING, Junior lay on the ground next to the flower bored stiff. Ma and Pa Gorg rush over to him trying to get him to speak, getting "Boooorrrrriiiiinnnggg." as their only reply.
Now Gobo realizes that he is the only one left who can save his friends and Junior Gorg. He attempts to unbore Junior without wearing a bowl on his head and the song doesn't work. He retrieves a bowl from the picnic basket that he and his friends had earlier, stopping to ask "How's it going?" to his friends. "Booorrriiinnnggg," is the natural reply. Gobo returns to Junior, puts the bowl on his head and sings "Whoops! Feelin' Better!" which snaps Junior out of it. He joins in singing, which "un-bores" Wembley, Mokey and Red, and all four Fraggles join in singing with Junior. At the end of the episode, they realize that Fraggles and Gorgs can work together to help each other.