A blood sausage made from pork blood, a high proportion of cereal (oats or barley), and spices; eaten at breakfast and combined in starters and salads.
pizzle
noun
A baton made from the penis of an ox, once used to beat men and animals.
The penis of an animal.
How often have the words black pudding and pizzle occurred in a corpus of books? (source: Google Ngram Viewer )