go haywire
US /ɡoʊ ˈheɪ.waɪr/
UK /ɡoʊ ˈheɪ.waɪr/

1.
devenir fou, dérailler, partir en vrille
to stop working correctly or to become out of control
:
•
The computer system suddenly went haywire, causing a lot of problems.
Le système informatique est soudainement devenu fou, causant beaucoup de problèmes.
•
The children went haywire when they saw the ice cream truck.
Les enfants sont devenus incontrôlables quand ils ont vu le camion de glaces.