1. inquire about or follow up on somebody at a later time
check back with me next week, will you?
When you 'check back' with someone you return to them for an update or to follow up: "That book doesn't seem to be here at the moment. Check back with me tomorrow in case someone has returned it." "I wanted to check back with you to see if you were happy with the work we produced." This is a common way of asking for feedback or follow-up, and as well as professional uses, you will hear it used in social situations: "I'm checking back with everyone to see if they can still make it to dinner on Friday." Similar expressions include 'get back to me' and 'I'm following up'.