go spare
US /ɡoʊ sper/
UK /ɡoʊ sper/

1.
ponerse furioso, volverse loco
to become extremely angry or distraught
:
•
My mom will go spare if I don't clean my room.
Mi mamá va a ponerse furiosa si no limpio mi habitación.
•
He'll go spare when he finds out what happened to his car.
Él va a ponerse furioso cuando se entere de lo que le pasó a su coche.