bite the bullet

verb

Etymology: Possibly from the reported practice of soldiers biting a bullet to avoid crying out in pain, usually during a medical procedure or punishment. See the Wikipedia article Bite the bullet for a further discussion of possible etymologies.

1. To accept a negative aspect of a situation in order to proceed.

   “The tenant was annoyed by the proposed rent increase, but the cost of moving would be even higher, so he bit the bullet and signed the new lease.”

2. To accept an undesirable or counterintuitive implication of an argument or view.

   “With respect to the status of infants and those suffering from dementia, the critic might bite the bullet and just accept the fact that human dignity does not extend to them, or else argue that the fact that infants and those suffering mental breakdown are part of a species whose members typically possess rationality merits them a special respect, even if they lack this quality as individuals.”