last out

last out (third-person singular simple present lasts out, present participle lasting out, simple past and past participle lasted out)

1. (intransitive) To survive or endure
   • 1987, Vijayaraje Scindia, ‎Manohar Malgonkar, The Last Maharani of Gwalior: An Autobiography

     I suppose only an incurable optimist would have gambled on its lasting out its full five-year term in office, for there was little to hold its super-stars together except the desire for office.

• outlast