hold the fort
US /hoʊld ðə fɔrt/
UK /hoʊld ðə fɔrt/

1.
tomar conta, assumir o comando, segurar as pontas
to take care of a place or situation while someone else is away
:
•
I'm going out for a bit, can you hold the fort until I get back?
Vou sair um pouco, você pode tomar conta até eu voltar?
•
While the manager was on vacation, his assistant had to hold the fort.
Enquanto o gerente estava de férias, seu assistente teve que tomar conta.