cerrarse en banda

1.
SpainLatin Americacolloquialinformal
- To refuse stubbornly to change one's position, opinion, or decision; to dig in one's heels.
- To reject negotiation, compromise, or cooperation and maintain an inflexible stance.
2.
SpainLatin Americacolloquialinformal
- To shut oneself off emotionally or socially, refusing to communicate or share feelings.
- To become closed-off or unresponsive when confronted, thereby preventing resolution or dialogue.

Examples:

ES: Nic vuelve a cerrarse en banda.
EN: Oh, Nic shuts down again.
ES: Van a cerrarse en banda.
EN: They'll only close ranks.
ES: Podríamos arrestarlo por agresión e presionarlo... podría cerrarse en banda.
EN: We could arrest him for assault and interview him under caution, but I reckon he'll no comment.
ES: Va a cerrarse en banda.
EN: She's gonna shut down.
ES: Sí, quizás si esas dos personas nos hubiesen criado, habría habido sitio en nuestra casa para que otras personas tengan sentimientos y alguien no habría tenido que cerrarse en banda.
EN: Yeah, maybe if those two people had raised us, there would have been room in our house for other people to have emotions and somebody wouldn't have had to shut himself down.