'owzat

'owzat! or Howzat! was an exclamation heard on the cricket ground. It was once heard, for instance, when the Fifth Doctor was playing in a Stockbridge Cricket Club match. (COMIC: The Tides of Time)

Behind the scenes

Look it up at Wiktionary.

Although never defined in DWU, it was simply a general interjection used by fielders to attract the attention of an umpire, in the hopes that a call might be reversed.