To begin to move; get started. * /The teacher told Walter to get going on his history lesson./ * /The foreman told the workmen to get cracking./ * /Let's get going. It's almost supper time./ Compare: GET DOWN TO, STEP LIVELY.
{v. phr.}, {slang}, {informal} To hurry up, to start moving fast. (Used mostly as an imperative). * /Come on, you guys, let's get cracking!/ (Let's hurry up!) Compare: GET GOING 2.