get someone's drift
Fig. to understand what someone is saying or implying. (Akin to if you get my drift.) I don't want to hear anymore about her or you. Do you get my drift?
get somebody's/the drift(informal) also catch somebody's/the drift (informal)
to understand what someone is saying Can you explain that again? I don't quite get your drift. I didn't understand everything he was saying but I think I caught the drift. (informal)