ho ho

Interjection

1. Used to attract attention to something sighted, usually by lookouts.
   • Sail ho!
2. halloo; hey; a call to excite attention, or to give notice of approach.
   • What noise there, ho?c. 1610–1611 (date written), William Shakespeare, “The Winters Tale”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount...
3. (rare) Said accompanying a vigorous attack.
   • "I'll hit you again, you thief !” he cried angrily, shaking “Ho-ho-ho!” he croaked.1900, Ching Foo, the Yellow Dwarf; Or the Bradys and the Opium Smokers, page 2

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