Definition of "brr"

brr

/bɝ/

interjection
1. Used to express being cold, to show shivering.
  Quotations
  The teeth chattered faster, stopped, and began again twice before the man could master his shiver sufficiently to say, "Ju-ju-st in ti-ti-me....Brrrr."
  1900, Joseph Conrad, Lord Jim, page x. 83
  'Brrrrr,' said Lieutenant Dubosc, realizing to the full how cold he was.
  1934, Agatha Christie, chapter 1, in Murder on the Orient Express, London: HarperCollins, published 2017, page 7
2. An expression of disgust or aversion, as if shuddering.
  Quotations
  Brrr. Even the thought of going underground made Old Bailey shudder.
  1996, Neil Gaiman, chapter 8, in Neverwhere, London: Headline Review, published 2005