on one's toes

1.
USUKworldwideinformalneutral
- Alert and ready to act; mentally vigilant and prepared for unexpected developments.
- Maintaining high levels of attention or responsiveness, typically because of competition or potential difficulty.
2.
USUKworldwideneutral
- Literally standing on the balls of one’s feet; on the tips of one’s toes.

Examples:

No examples available.