good form

Noun

good form (uncountable)

1. (UK) Behavior that is both morally and socially correct; proper manner, decorum or etiquette.
   • The Queen is a model of good form.
   • When any of his descendants chose to take him to task for the crudeness of his manners he was accustomed to look them coldly over and retort that things had come to a pretty pass when comparatively new people ventured to instruct the oldest of the old settlers as to what was or was not good form.1909, John Kendrick Bangs, chapter 3, in The Autobiography of Methuselah
2. Used other than figuratively or idiomatically: see good, form.
   1. Especially, a high level of performance in an activity (often in the expression on good form; see also on form).
      • Jones showed good form in the match today, and Smith was on good form too.