oner

An extraordinary individual.

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.

A conker that has won one match.

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

The history of 'oners' becoming 'sixers' through successive victories[…]

Synonym of long take; a long one-take shot, or equivalent animated segment simulating a one-take shot.