kayo

 
Pronunciation: /keɪˈəʊ/
Boxing, informal

noun (plural kayos)

  • a knockout: a sixth-round kayo

verb (kayoes, kayoing, kayoed)

[with object]
  • knock (someone) out: he was kayoed by Patterson in the sixth round it’s a software virus that kayoes computer systems

Origin:

1920s: representing the pronunciation of KO