Meaning

4 senses
  1. (idiomatic, informal)Something that is completed or accomplished only once, never to be done again.

  2. (slang)A basketball player who plays college basketball for a single year and then declares for the NBA draft.

    John Calipari's Kentucky squad was made up of one-and-done players.

  3. (US, informal)The act of a team making the postseason playoffs but losing the very first game played in it.

  4. A family in which the parents decide to have only one child.

Forms

plural: one-and-dones
Singularone-and-done
Pluralone-and-dones

regular

See also

neighbours in the dictionary
one-and-done — meaning, examples, forms, synonyms | Krumeto