first and last

1. attributivenot comparableonly

   This is the first and last time I'm doing this.

plural firsts and lasts

1. idiomaticA person's combined given name and surname.

   Hi, Yes, I'm here to register as a new primary care patient. OK, I'll have you fill out a form on this digital tablet, but first I need your first and last, date of birth, and the last four of your social [the ending digits of an identification number].

1. not comparablealtogether; wholly

   He is a gentleman, first and last.

   1 more example

   I had been a cad, a scoundrel, first and last. Sofia had been courageous in her misfortune; she had never wished to be a burden on me; she had hidden nothing from me as regards her past; I had sworn that her past no longer mattered, and then I had beaten her nearly to death.

   1937, Gian Dàuli, The Wheel Turns, page 345

   Synonyms: absolutely, all-out, tout à fait, all the way, stone-cold, blind, altogether, stark