Although the weakie has no chopping teeth comparable to those of a bluefish, he boasts a pair of extremely sharp canines in his upper jaw. 1959, Henry Lyman, Frank Woolner, The Complete Book of Weakfishing, New York, N.Y.: A. S. Barnes and Company, page 44:
(Australia, slang) A weak, unreliable or mediocre person or thing; a weakling.
That was as far as Macauley would go. He wanted to set his shoulders and bunch his fists and let the words fly at O' Neill: You can spot the stranger that comes on a visit and mark him down; you can swagger the streets at shearing-time and reap a harvest; but don't lump me in with the weakies and the yellow-bellies busting their cheques over a good time; the curs and the possums who get silly-drunk and fall in fear to your authority. 1955, D'Arcy Niland, The Shiralee, Sydney, N.S.W.: Angus & Robertson; The Book Society, pages 53–54:
(especially, rare) An unskilled player.
And now we enter the real chess arena, where, haughty about ratings, everybody has only one thought in mind: to win — to pile up plaudits against the county grader's autumnal assessment. And to this end we all hope for a weaker opponent, but in the tournaments there are no outright weakies. 2010, John Healy, Coffeehouse Chess Tactics: An Astonishing Trip Into the World of Competitive Chess, Alkmaar, Netherlands: New In Chess, page 17: