In-A-Gadda-Da-Leela

An old-fashioned insult that carries theatrical or comic weight in modern speech. Used here for exaggerated effect rather than as a serious accusation.

A fixed adverbial phrase meaning to act cautiously or without risk. Not compositionally obvious because 'seguro' alone means 'safe/sure' but the phrase signals a course of cautious action rather than a state.

Used sarcastically in the episode to mock someone who states the obvious. When used sincerely it praises sharp observation; in a sarcastic tone it flips to mean the opposite.