completely lost your mind
Ты совсем с ума сошел?
Are you completely crazy?
— Radio Day (2008)
Братан, ты совсем с ума сошел, Зико.
Bro, have you completely lost your mind, Zico?
— Карандиру (2003)
Слушай, она совсем с ума сошел?
Hey, has she completely lost her mind?
— Mimino (1977)