Pizzle is a Middle English word for penis, derived from Low German pesel or Flemish Dutch pezel, diminutive of the Dutch language pees, meaning 'sinew'.[1][2] The word is used today to signify the penis of an animal,[3] chiefly in Australia and New Zealand.[4]
The word pizzle is also known, at least since 1523, especially in the combination "bull pizzle", to denote a flogging instrument made from a bull's penis.
In William Shakespeare's play Henry IV, Part 1, the character Falstaff uses the term as an insult (Act 2, Scene IV):[5]
'Sblood, you starveling, you elf-skin, you dried neat's tongue, you bull's pizzle, you stock-fish!