catch someone's drift
US /kætʃ ˈsʌm.wʌnz drɪft/
UK /kætʃ ˈsʌm.wʌnz drɪft/

1.
entender o que se quer dizer, pegar a ideia
to understand the general meaning or intention of what someone is saying
:
•
I think I catch your drift; you want me to finish this by tomorrow.
Acho que entendi o que você quer dizer; você quer que eu termine isso até amanhã.
•
He spoke vaguely, but I still managed to catch his drift.
Ele falou vagamente, mas eu ainda consegui pegar a ideia dele.