A repeat of a previous activity, with the hope of greater success.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "do-over" in a sentence
"And a good number of those middle-aged men are nesting again -- the so-called do-over or start-over dads; you're just not going to see a lot of middle-aged women rushing to get knocked up."
"Most Republican American's was expecting a do-over, Mr. Boustany."
"Do you think Bernie Madoff, sitting in a jail cell for the rest of his life, would like to have a do-over?"