Definition of billy-o in English:

billy-o

Line breaks: billy-o
Pronunciation: /ˈbɪlɪəʊ
 
/

noun

(in phrase like billy-o) British informal
Very much, hard, or strongly: I had to run like billy-o
More example sentences
  • He would spend a while trying to get the chute to catch the wind, and then run like billy-o down the hill, occasionally jumping in the air.
  • But only to Claus Jensen, who nearly restores some Danish pride with an exquisite chip from the edge of the area that nearly beats Seaman, who tips the ball over the bar with his midlife-crisis mane flapping like billy-o.
  • Is that the same stuff as the algae that kills all the marine life under it and breeds like billy-o?

Origin

late 19th century: of unknown origin.

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