quirk

/K W ER1 K/
noun
  1. 1

    An idiosyncrasy; a slight glitch, mannerism; something unusual about the manner or style of something or someone

    โ€œThe car steers cleanly, but the gearshift has a few quirks.โ€

  2. 2

    An acute angle dividing a molding; a groove that runs lengthwise between the upper part of a moulding and a soffit

  3. 3

    A quibble, evasion, or subterfuge.

verb
  1. 1

    To move with a wry jerk.

    โ€œHe quirked an eyebrow.โ€

  2. 2

    To furnish with a quirk or channel.

  3. 3

    To use verbal tricks or quibbles

Source: https://en.wiktionary.org/wiki/quirk