Una rivalidad, una canción

Used to describe two people who have obvious romantic or energetic chemistry. Literally 'to strike sparks off each other'. Common in River Plate speech to describe attraction or intense connection.

Implies that the niceness is performed or fake, used to accuse someone of insincerity. The diminutive '-ito' intensifies the mocking tone.

Very common River Plate expression. Literally 'to put in the batteries', used to urge someone to focus, work harder, or stop wasting time.

Used figuratively to mean mentally distracted or unfocused, as in 'my head is all over the place'. The literal meaning 'in any place' does not capture this figurative use.