get going
     v 1: begin or set in motion; "I start at eight in the morning";
          "Ready, set, go!" [syn: {start}, {go}] [ant: {stop}]
     2: start to be active; "Get cracking, please!" [syn: {get
        cracking}, {bestir oneself}, {get moving}, {get weaving},
        {get started}, {get rolling}]
Source: WordNet® 2.0