The Mad Scientist: Lisa gets invited to work at a prestigious science institute, seeing it as an opportunity to get away from her crazy and crowded family life.
Missed Connection: Lori and Bobby worry that dating long-distance is causing them to lose their connection.
"The Mad Scientist"
- Breaking the Fourth Wall: Lisa does it at the end of the episode.
- Catapult Nightmare: Lisa wakes up like this when she has a nightmare while sleeping at the institute.
- Chekhov's Gun: The episode opens with Lisa explaining her theory about time travel to three other scientists. In the climax, she uses this to solve her problem.
- Continuity Nod: Lisas chemistry setup seen in the title card is the same one she used in "Making the Grade" for making the strep throat cure.
- Covered in Gunge: When Lisa tries to make herself a PB&J sandwich the way Lincoln does, she and everything around her winds up covered in peanut butter and jelly:Lisa: How does he do it?
- A Day in the Limelight: For Lisa.
- E = MC Hammer: Lisas equation for time travel. Plus, the machine she eventually builds to achieve said time travel runs on magnets, plutonium, and banana peels.
- Eureka Moment: After Leni bemoans that Lisa couldn't just go back in time and choose not go to the institute, Lisa writes it off as being impossible, before saying she needs to give her presentation on her time travel studies. Thankfully, no sooner does she say this out loud does she realize her solution.
- Foreshadowing: When faced with the prospect of making a PB&J sandwich by herself, Lisa shrugs off any potential difficulty since she recently cracked time travel.
- Gasshole: Lynn, who farts when walking past Lisa's room. The very first lyrics of Lisa's song about living in the institute is how the only gasses she smells now are of the "noble kind".
- Gross-Up Close-Up: The moldy cupcake Lincoln and Lana found behind the radiator, which has a used bandage in it, among other things. Lana eats it.
- Mental Time Travel: In a nutshell, this is basically how Lisa's time machine works.
- Motivation on a Stick: While Lisa is video calling her parents to say she will stay at the research facility, Luan can be seen doing this to Leni with a dollar bill.
- Reality Ensues: This is the first episode to really bring up the fact that while Lisa's certainly very smart and mature for someone her age, she is still just a little kid. While living at the institute, she's shown having trouble doing certain things on her own without her family around to help her.
- Running Gag: Lisa using scientific terms to explain her emotions and feelings, such as defining having "butterflies in her stomach", or having "a lump in her throat".
- Security Blanket: When staying at the institute proves a lot harder than expected, Lisa ends up using a model skeleton to give her comfort during the night.
- Set Right What Once Went Wrong: When Lisa decides she wants to be back with her family, she acknowledges that she can't just leave, since it would ruin her reputation. So, she opts to use her time machine to go back to when she was offered to come to the institute and turn it down.
- Shout-Out: Lisa's time machine acts more or less like the one from Quantum Leap: she effectively leaps into her past self.
- Squick: Lana eating the spoiled cupcake, even after the Gross-Up Close-Up of how disgusting it is and after Lisa told her and Lincoln what the consequences of eating it could be.
- The Story That Never Was: Lisas time travel at the end effectively undoes everything that has happened in this episode and ensures it wont happen again, with only her remembering the original timeline.
- Technicolor Science: The research lab is full of it.
- Tempting Fate:
- When Mr. Loud asks Lisa whats wrong with working from home, her point is immediately proven by the other siblings acting loud and rowdy.
- Lisa expects that making herself a PB&J-sandwich cant be too hard. She fails miserably.
- Absentee Actor: Lori and the twins, Lana and Lola, are the only Loud kids to appear in this episode.
- By the Lights of Their Eyes: In the Dark Side of the Spoon restaurant, it is so dark inside, that all that can be seen are Lori and Bobby's eyes.
- A Day in the Limelight: For Lori and Bobby.
- Locked in a Room: Near the end of the episode, Bobby gets locked in the bathroom of Flip's Food & Fuel.
- Missed Him by That Much: When Lori and Bobby drive to each other's houses to see each other, they pass right by each other in their vehicles.
- Reality Ensues: Lori and Bobby experience the harsh reality of having a long distance relationship, namely that it's hard to maintain.
- Running Gag: Carl trying to prove that he's mature enough to date Lori, only for one of his parents to do something that reminds him he's still only six years old.
- Shout-Out: The restaurant that Lori and Bobby visit is called Dark Side of the Spoon.
- Slippery Skid: At the start of the episode, the freezer of the bodega has another meltdown, spilling molten ice cream all over the floor. Hector is seen sliding across the floor as a result.