Season 5 · Episode 21
The Simpsons
Grandpa Simpson falls for Marge's mother, but loses out to a competitor; Bart gets ripped off shopping at home with Homer's credit card.

Used to tell someone to stop what they are doing. Conveys firm impatience without being vulgar. Very common in everyday spoken Latin American Spanish.
Fixed phrase meaning something will be done very quickly. The literal words (a corruption of 'Sancti Amen') give no hint of the meaning, so it is genuinely non-compositional.
A very common colloquial construction in Latin American Spanish. 'Meterse' alone means 'to get into', but 'meterse con alguien' shifts to mean provoking or confronting that person, which is not derivable from the literal meaning.
Derived from 'beso' (kiss) with an augmentative/frequentative suffix. The result is a single informal verb not derivable from knowing 'beso' alone, conveying an exaggerated, affectionate, or even comic degree of kissing.
'Fruncir el ceño' is the standard fixed phrase for frowning or scowling in Latin American Spanish. The expression is idiomatic because 'fruncir' (to pucker, to gather) paired with 'ceño' (brow) does not transparently mean 'to frown' to a learner who knows the individual words.
While 'conforme' can mean 'in agreement', 'conformarse con' as a verbal phrase carries the specific sense of accepting something less than ideal. The nuance of reluctant acceptance is not obvious from the root.