keep somebody going

keep (one) going

To give one just enough energy, sustenance, entertainment, etc., until they get what they truly need or want. Lost for days in the woods, we had to eat bugs and edible roots 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.
See also: going, keep

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?
See also: going, keep, somebody