Whacker

//ˈwækə(ɹ)// noun, slang

Definitions

Noun
  1. 1
    One who, or something which, whacks.

    "Joe was just about the best Australian heavyweight at the time, a very tough customer in his own right. He didn't have any science, but he was a mighty whacker."

  2. 2
    something especially big or impressive of its kind wordnet
  3. 3
    Synonym of whopper (“anything large”). informal
  4. 4
    Synonym of whopper (“an outrageous or blatant lie”). informal

    ""Oh, there's a whacker!" cried East; "we haven't been within a hundred yards of his barn; we haven't been up here above ten minutes, and we've seen nothing but a tough old guinea-hen, who ran like a greyhound.""

  5. 5
    A radio amateur who is keenly interested in emergency response and may travel to the sites of emergencies. slang

Etymology

From whack + -er.

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