The situation in which a person intends to foster an animal temporarily but winds up adopting the animal permanently.

(transgender) Said of a trans woman, to fail to pass as a male owing to a successful MTF transition.

(transgender) Said of a trans man, to fail to pass as a female owing to a successful female-to-male transition.

(programming) To report immediately any condition likely to cause a failure, rather than attempting to continue.

present participle of fail fast

simple past tense and past participle of fail fast

present participle of fail safe

simple past tense and past participle of fail safe

(intransitive) Alternative form of fail-safe (verb with differing inflections)

simple past tense and past participle of female-fail