be on its last legs

be on its last legs

Of a machine, to be near a complete breakdown or loss of functionality. Judging by all that noise coming from her car, I'm pretty sure it's on its last legs. The blender stopped working again today—it must be on its last legs.
See also: last, leg, on

on its last legs

Of a machine, near a complete breakdown or loss of functionality. Judging by all that noise coming from her car, I'm pretty sure it's on its last legs. The blender stopped working again today—it must be on its last legs.
See also: last, leg, on
Farlex Dictionary of Idioms.

on its last legs

If something is on its last legs, it is old or in a bad condition and will not be able to be used much longer. The dressing-gown I've worn for years is on its last legs. By the mid-1980s, the copper industry in the US was on its last legs.
See also: last, leg, on
Collins COBUILD Idioms Dictionary, 3rd ed.

on its last legs

verb
See on one’s last legs
See also: last, leg, on
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • on its last legs
  • on your/its last legs
  • drive (something) into the ground
  • keep it down to a dull roar
  • put (something) through its paces
  • a big name/noise
  • a big noise
  • big noise
  • go bang
  • noise