In the last chance saloon having been allowed one final opportunity to improve or get things right, from the fanciful idea of a saloon bar with this name.
it is the last straw that breaks the camel's back proverbial saying, mid 17th century, meaning that the addition of one quite minor problem may prove crushing to someone who is already overburdened. (Compare the last drop makes the cup run over.)
the last drop makes the cup run over proverbial saying, mid 17th century, in which the addition of something in itself quite minor causes an excess. (Compare it is the last straw that breaks the camel's back.)
last hurrah the final act in a politician's career, a final performance or effort, a swansong, from the title of The Last Hurrah, a novel (1956) by Edwin O'Connor.
Last Judgement the judgement of humankind expected in some religious traditions to take place at the end of the world.
last post in the British armed forces, the second of two bugle calls giving notice of the hour of retiring at night, played also at military funerals and acts of remembrance.
last rites in the Christian Church, those administered to a person who is about to die.
Last Supper the supper eaten by Jesus and his disciples on the night before the Crucifixion, as recorded in the New Testament and commemorated by Christians in the Eucharist.
last trump the trumpet blast that in some religious beliefs is thought will wake the dead on Judgement Day.
See also there are no birds in last year's nest, the four last things, he laughs best who laughs last, last of the Mohicans at Mohican, Seven Last Words at seven.