To throw or toss something casually. Can also refer to a cut of beef from the shoulder area, or be used as an informal term of endearment.
Possibly imitative of the sound of throwing, or from Middle English 'chukken' meaning to cluck like a chicken. The beef cut sense comes from the motion of butchering.
The word 'chuck' demonstrates how the same sound can mean completely different things - from throwing objects to affectionate address ('hey chuck') to beef cuts. This versatility shows how informal words often develop multiple meanings through casual usage.
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