* what bad milk
Idiom used all the time by Young People
This is used to convey the feeling of pleasure or satisfaction that one experiences at someone else’s misfortune. Used to gloat and mock.
“¿No has ganado el vídeojuego? ¡Qué mala leche!”
“You didn't win the game? What bad milk!”
3 out of 4 Spanish, Castilian speakers have heard this