| point of no return | |
| —n | |
| 1. | a point at which an irreversible commitment must be made to an action, progression, etc |
| 2. | a point in a journey at which, if one continues, supplies will be insufficient for a return to the starting place |
| the offspring of a zebra and a donkey. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
point of no return
The place in a course of action beyond which reversal is not possible. For example, Once the contract is signed, we've reached the point of no return. This expression comes from aviation, where it signifies the point where an aircraft does not have enough fuel to return to the starting point. [c. 1940]