oner

noun4

1. •
   (informal) An extraordinary individual or thing.
2. •
   Synonym of long take; a long one-take shot, or an equivalent animated segment simulating a one-take shot.
3. •
   A small marble of little worth in children's games.

   • The winner was the last to flick a marble into the gully. A oner had to beat a fourer four times to win, a fourer had to beat a twelver three times, and so on. — 2012
4. •
   (UK) A conker that has won one match.

   • May all your conkers be oners / May your love life fail with dishonours — 1993