Etymology
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bollocks (n.)
"testicles," 1744, variant of ballocks, from Old English beallucas "testicles," from Proto-Germanic *ball-, from PIE root *bhel- (2) "to blow, swell." In British slang, as an ejaculation, "nonsense!" from 1919.
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bollock (n.)
"testicle," singular of bollocks (q.v.).
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bollix (v.)
"bungle, make a mess of," 1937, a respelling (perhaps euphemistic) of bollocks, from Old English beallucas "testicles," from Proto-Germanic *ball-, from PIE root *bhel- (2) "to blow, swell." From 1919 as an interjection, "nonsense!" Related: Bollixed; bollixing.
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