like there's no tomorrow

like there's no tomorrow

Very rapidly and eagerly; without restraint or thought (i.e., as if there won't be another opportunity, so something has to be done as much or as quickly as possible). He must have been starving, because Jonathan started wolfing down his food like there's no tomorrow! Every time Kevin goes out shopping he spends money like there's no tomorrow.
See also: like, no, tomorrow
Farlex Dictionary of Idioms.

like there's no tomorrow

 and like there ain't no tomorrow
Rur. eagerly; rapidly; without stopping. You can't go on eating candy bars like there's no tomorrow. Jim's spending money like there's no tomorrow.
See also: like, no, tomorrow
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

like there's no tomorrow

If someone does something like there's no tomorrow, they do it a lot, without thinking about the consequences. They are spending money like there's no tomorrow. Note: You can also say that someone does something as if there were no tomorrow or as if there was no tomorrow with the same meaning. No wonder they danced as if there were no tomorrow.
See also: like, no, tomorrow
Collins COBUILD Idioms Dictionary, 3rd ed.

do something as if/like there’s no toˈmorrow

(informal) do something with a lot of energy, as if this is the last time you will be able to do it: She’s spending money like there’s no tomorrow.
See also: if, like, no, something, tomorrow
Farlex Partner Idioms Dictionary
See also:
  • like there was no tomorrow
  • like there were no tomorrow
  • as if there was no tomorrow
  • as if there was/were no tomorrow
  • as if there's no tomorrow
  • do something as if/like there's no tomorrow
  • like there ain't no tomorrow
  • chuck (something) down
  • chuck it down
  • chuck down