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

1.
captar la idea, entender el sentido
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.
Creo que capto tu idea; quieres que termine esto para mañana.
•
He spoke vaguely, but I still managed to catch his drift.
Habló vagamente, pero aun así logré captar su idea.