Potty Mouth

"" is the seventy-fourth episode of The Loud House.

​Plot
When the kids hear Lily curse, they are terrified they have been a bad influence on her, and decide to change their behavior for the future.

Synopsis
Rita and Lynn Sr. are heading off to the mall, because Dr. Shuttleworth of the baby academy, is coming to interview Lily, and Lynn Sr. needs a more appropriate tie. Once they head out, Lynn changes the TV channel because Dessert Storm is on right now, and Lily suddenly exclaims "dannit". This causes the siblings to gasp in horror, because they think that Lily had just said the "D" word. The siblings fear that that Lily learned the word from them, because in past experiences, the kids have gotten into some predicaments that lead them to crying out the "D" word in anger, and Lily was there to witness them saying it. The siblings realize that if Lily were to exclaim that word in front of Dr. Shuttleworth, Lily won't be gained access into the baby academy Rita and Lynn Sr. have signed her into. Lincoln says he has an idea on how to make Lily forget she ever said that word.

The plan is set into action. Each of the siblings are tasked on doing an action that would lead them into saying the word. Throughout all of these, their faces would turn red, and are on the verge of saying the word, but they would say something else in hopes that Lily would mimic them. After nearly an hour of doing these actions, the siblings believe that Lily has forgotten all about the word. At that moment, Rita and Lynn Sr. arrive back, and begin prepping things up for Dr. Shuttleworth's arrival. One of the things they do is set a tray of snacks on the table. Lily tries to get one, but the siblings tell her not to eat them, causing her to exclaim "dannit" again, making the siblings realize that the plan didn't work.

Dr. Shuttleworth arrives, and is ready to interview Lily. Dr. Shuttleworth give Lily several things to play with, such as a hardware set, a guitar, and a ball, but the siblings fear that Lily would do something that lead to her yelling out the word, prompting them to confiscate the toys. When the kids become too bothersome with their meddling behavior, the parents tell the kids to leave, but Dr. Shuttleworth tells them that they should leave too, as she just wants to be with Lily. The siblings huddle up, and says that they need a plan to get Lily out of the room. Lincoln suggests on making Lisa take Lily's place, because of the fact that she wears a wig after a nuclear experiment gone wrong, and wearing dentures. The siblings take Lily away under the guise that she spoiled her diaper, and put Lisa, disguised as Lily, in Lily's place. However, Lisa begins displaying some of her smart aleck attitude, like painting complex formulaic equations, doing an impressive xylophone solo, and able to tell Dr. Shuttleworth what type of condition her eyes are in, just by looking at her glasses. This prompts Luna to tell Lisa that she needs to act more like a 1 year old, which she does by intentionally soiling her diaper.

Later, Dr. Shuttleworth is done interviewing Lily, and concludes that due to the things Lisa did, she's allowed into the academy. Just before Dr. Shuttleworth leaves, she takes the snacks on the table with her, causing Lily to exclaim "dannit". Everybody is left horrified at this action, and the kids begins pleading to Dr. Shuttleworth that Lily didn't mean to hear that word, and say that they've been a bad influence on her. Dr. Shuttleworth, however, laughs at this, saying that Lily didn't say the "D" word, she was actually saying "doughnut". Dr. Shuttleworth gives Lily a doughnut, and leaves. While Rita and Lynn Sr. begin cheering at the fact Lily got accepted into the baby academy, the kids begin cheering at the fact that they weren't a bad influence on Lily. However, as they cheer, Charles comes by, and eats Lily's doughnut, causing Lily to cry out an actual curse word (which is bleeped out), causing the family to look on and gasp in sheer horror.

Cast

 * Collin Dean as Lincoln
 * Catherine Taber as Lori
 * Liliana Mumy as Leni
 * Nika Futterman as Luna
 * Cristina Pucelli as Luan
 * Jessica DiCicco as Lynn/Lucy
 * Grey Griffin as Lana/Lola/Lily
 * Lara Jill Miller as Lisa
 * Brian Stepanek as Lynn Sr.
 * Jill Talley as Rita
 * TBA as Dr. Shuttleworth

Trivia

 * This is the second episode that involves swearing. There was a brief joke about it in "Get the Message".
 * This is the first episode of Season 2 written by Michael Rubiner, whose last writing credit was Season 1's "Study Muffin".
 * This is one of the few times that Lincoln doesn't use a long title for an operation.
 * It's revealed that Lisa wears a wig, uses fake teeth/dentures, and has an extra toe on her right foot due to a "nuclear experiment gone wrong."
 * The closed captioning for the episode say that Lily said "Dannit." before her actual saying is revealed.
 * If you looked at their lips, you could see they weren't saying "Dannit". They were saying the actual "D-Word".
 * The Loud kids play Nose Goes to decide who changes Lisa's diaper, which they did in "Suite and Sour". Lincoln lost again.
 * This is the second time Lisa is seen bald. The first is "Room With a Feud".
 * Incidents that caused the siblings to openly yell out the "D" word in front of Lily:
 * Lincoln - Broke the TV.
 * Lori and Leni - Ripped a sweater.
 * Luna - Broke one of her guitar strings.
 * Lynn - Baseball hit her on the head.
 * Lana - Banged her hammer against her thumb.
 * Lola - Crashed her Princess Car.
 * Lisa - Sang a song that had the word.
 * Luan and Lucy were the only ones not to say the "D" word.
 * It's unknown if the siblings (minus Lily) were grounded for teaching Lily a curse word.
 * It's most likely they did get punished, but were punished off screen.

Running Gags

 * The Loud siblings saying the "D" word.
 * The Loud siblings trying to prevent Lily from saying the "D" word.
 * Lynn Sr.'s reaction to his ties.
 * The Loud siblings having their faces red when they are saying the "D" word.
 * A sound is played to block off the swear word.
 * A picture frame falls down and breaks.