pizzle

noun

1. the penis of an animal, especially a bull.
2. a whip made from a bull’s pizzle.

noun

1. archaic, or dialect the penis of an animal, esp a bull

n.“penis of a bull used as a flogging instrument,” 1520s, from Low German pesel or Flemish pezel, diminutive of root of Dutch pees “sinew,” from Old Low German root *pisa.