A Choice

Literally 'to go around in circles'. Used here in the reflexive 'no le des vueltas' to mean 'stop overthinking it / don't dwell on it'. The non-compositional sense of obsessive mental rumination is not obvious from the literal meaning.

Fixed phrase meaning to wear your best or most formal clothes. The literal components ('punto en blanco', white point) give no clue to this meaning.

Literally the bird 'sparrow'. Used here as a contemptuous or patronising nickname aimed at someone considered small, insignificant, or easy to intimidate. The belittling connotation is non-compositional.

Literally 'soul of a jug'. A traditional fixed expression used to call someone naive, slow-witted, or oblivious, but without real malice. The tone is often warm or gently exasperated rather than truly insulting.