keep somebody going
keep (one) going
To give one enough energy, sustenance, etc., until they get what they truly need or want. Lost for days in the woods, we had to eat bugs and edible roots to keep us going. I am so anxious for the new movie in the series to come out this winter that I'm reading the novels again to keep me going.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
ˌkeep somebody ˈgoing(informal) be enough for somebody until they get what they are waiting for: Why don’t you have an apple to keep you going till dinner time?
Farlex Partner Idioms Dictionary © Farlex 2017