Meaning

1 senses
  1. (offensive, uncountable)The act of publicly punishing a male slave, typically by flogging him, and in some cases subsequently sexually assaulting or raping him in front of other slaves, in order to humiliate him.

Origin

buck (in derogatory US sense of a black man) + breaking (as in breaking a horse)

buck (in derogatory US sense of a black man) + breaking (as in breaking a horse)

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See also

neighbours in the dictionary
buck breaking — meaning, examples, forms, synonyms | Krumeto