Take it off-line 

This term seems to come up when an agenda item gets derailed by conversation that’s off topic. Usually a senior person will say to the off-topic speaker, “Let’s take this offline. We need to move on to the next item on the agenda.” Take it offline is a polite dismissal. May be used to let the room know that leadership is not willing to talk about the subject at hand.

“This has been a great discussion, but let’s take it off-line and move on.”

Take it off-line by FrankyJones December 11, 2016