turn upside down
US /tɜːrn ˌʌpsaɪd ˈdaʊn/
UK /tɜːrn ˌʌpsaɪd ˈdaʊn/

1.
capovolgere, rovesciare
to invert or flip something so that the top is at the bottom
:
•
He accidentally turned the box upside down, spilling all its contents.
Ha accidentalmente capovolto la scatola, rovesciandone tutto il contenuto.
•
The strong winds turned the umbrella upside down.
I forti venti hanno capovolto l'ombrello.
2.
sconvolgere, mettere sottosopra
to cause great disorder or confusion; to disrupt completely
:
•
The new policy turned the entire department upside down.
La nuova politica ha sconvolto l'intero dipartimento.
•
The unexpected news turned her world upside down.
La notizia inaspettata ha sconvolto il suo mondo.