English edit

Alternative forms edit

Etymology edit

Onomatopoeic.

Interjection edit

katchoo!

  1. Synonym of achoo, characteristic sound of a person sneezing.
    • 1951, Huge McCrae, The Ship of Heaven, volume I, page 19:
      SIR GORGEOUS [Sneezes and looks about him] Katchoo! Kazz-ee! Oh, D. this cough!