Start an undertaking; begin work. For example, After months of training, the astronauts were eager to get the show on the road. This synonym of get going alludes to a theatrical production going on tour. Also see get the ball rolling.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.