go it

{v. phr.}, {informal} 1. To go fast; run hard; not to spare yourself. - Often used as a command. * /The coach yelled to the runner to go it./ * /At the party the girls cheered for their partners to go it./ * /The boys called, "Go it!" to the dog chasing the cat./ 2. To live; continue to do or work. * /John wants to leave home and go it alone./ Compare: ON ONE'S OWN.