Season 3 · Episode 20
The Simpsons
Marge fears a cheatin' heart when a waitress-country singer asks Homer to be her manager.

Used when something (music, words, an experience) resonates deeply or unexpectedly with a person. The subject is the thing that moves, not the person.
Lío literally means a tangle or bundle, but colloquially it signals a complicated, annoying, or messy situation. Used to wave off the details of something unpleasant.
Standard colloquial expression for reconciling after a fight. Widely understood across Latin America.
Completely standard and transparent, included here only to note that in conversational Latin American Spanish it frequently appears shortened or blended into rapid speech as 'no sé seguro', but the base form is fully compositional.
Literal meaning, but included because the phrasing with quedar (to end up in a state) rather than ponerse or volverse is the natural colloquial choice in Latin American Spanish for permanent or serious physical outcomes.
Fixed phrase signaling that a speaker is ready and willing to listen. Identical in structure to its English counterpart but is genuinely idiomatic in Spanish and not guessable from the literal words alone.