Season 4 · Episode 14
The Simpsons
When Homer neglects Bart once too often, Bart goes to the Big Brother program to get a new father figure. Stung, Homer replaces Bart with a little brother.

A fixed temporal expression. While individually transparent, its idiomatic function as a firm marker of a new beginning is worth flagging as it appears at emotionally significant moments in the dialogue.
Literally "I feel it," but fully grammaticalized as an apology. Unlike "perdón" (excuse me, pardon), "lo siento" carries emotional weight and sincerity, used for genuine regret rather than minor inconvenience.
A colloquial phrase used literally but also cited here as an example of how youth slang can mean something physical. The joke hinges on the literal physical meaning, making it an accessible but culturally loaded expression in casual speech.
"Vergüenza" literally means shame or embarrassment, but in this fixed expression it refers to the exposed body part itself, a common euphemistic use in colloquial Latin American Spanish.
"Pepinillo" (little cucumber/pickle) is used here as a humorous euphemism for the male genitalia. The humor is non-compositional: knowing "pepinillo" means pickle does not reveal the intended meaning in this context.
Used as a fixed expression of gradual progress or endurance. The doubling of "día" gives it a rhythmic, formulaic feel distinct from simply saying "cada día".