Season 7 · Episode 9
The Simpsons
After Sideshow Bob escapes from prison, the Springfield Air Show is the setting for his ill-fated vendetta against television and Krusty the Clown.

Literally 'little butterfly', but used as a pejorative slur in colloquial Latin American Spanish. The diminutive softens the sound but not the intent. The insult relies entirely on cultural association rather than the literal word, making it opaque to learners who know only the base word.
Fixed adverbial phrase meaning to do something without sight or without information. Not guessable from 'ciego' alone because the phrase has an idiomatic extension beyond physical blindness: it often means acting without any guidance or information at all.
Short for 'en bandeja de plata'. Used to describe something given or served up effortlessly to someone, often with a note of sarcasm or irony. The image is of a silver tray; a learner knowing only 'bandeja' (tray) would not predict this idiomatic meaning.
While 'salida' means exit and 'fácil' means easy, this fixed phrase carries a specifically moral or character-related judgment: taking the path of least resistance when something harder would be more correct. The connotation of moral weakness or cowardice is non-compositional.
Literally the sound a donkey makes. When applied to people, it implies their talking or noise is senseless and irritating, like an animal. A learner knowing only 'bray' might not connect this to human speech used as a dismissive insult.