be on one’s last legs—be at the end of one’s resources and failing fast:
- At this point I was on my last legs … I would have loved nothing more than to have stopped for a rest.
Cf.: need new legs —(also: need fresh legs)
1. be in need of rest:
- I think I need new legs from all the walking we did.
2. (Sport) need players who are young:
- We need new legs on the team. Veterans are great, but the youth has so much more potential.
be the last leg—be the last part of a trip (separated from other parts by a period of rest, etc.):
- We were tired but this was the last leg of our journey.