It is a Spanish slang term which means 'to get wires crossed' or 'to lose one's temper'. It's often used when someone suddenly gets angry or reacts in a way that is disproportionate to the situation.
Examples
- Spanish: Cuando le dije que no podíamos ir al concierto, le cruzaron los cables y empezó a gritar.
- English: When I told him we couldn't go to the concert, he got his wires crossed and started shouting.