out of the swim (of things)
Not actively involved in and knowledgeable about something. Sorry for all the questions, but I just came back from my maternity leave and have been out of the swim of things. I don't want to be out of the swim when I come back from leave, so I get updates from my team every week.
out of the swim of things
Fig. not in the middle of activity; not involved in things. (The opposite of in the swim of things.) While I had my cold, I got out of the swim of things. I've been out of the swim of things for a few weeks. Please bring me up-to-date.