Go Hard Or Go Home Meaning

Example : 2009 Sept. 10, Larry Dorman, "Golf: Players Competing With a Sense of Urgency," New York Times (retrieved 17 Nov 2015):  "Probably top five I would have to do, I’m guessing, to get into the Tour Championship. So it’s either that or a couple weeks off. Go hard or go home."2013 Aug. 19, Catriona Menzies-Pike, "Does being a fitness fanatic make you a good politician?," Guardian (UK) (retrieved 17 Nov 2015):  He strikes me as more of a go hard or go home athlete, an impression reinforced by reports of aggressive and competitive behaviour.2014 Oct. 3, Jordan Heath-Rawlings, "Unlikely Predictions: Eastern Conference," sportsnet.ca (Canada) (retrieved 17 Nov 2015):  Those kind of predictions are for the weak. We believe in going hard or going home. So these are real predictions—not probabilities.2015 January, Edward Jones, "Fundraising efforts had us bouncing off the wall", The University Paper: Newcastle Edition (UK), p. 39 (retrieved 17 Nov 2015):  Members of the Newcastle University trampolining team went hard or went home when they took part in a 24-hour sponsored bounceathon.