There are lots of theories behind the meaning of his name! My personal favorite being that it’s astoundingly close to the name “Pierrot.” Pierrot is a character from the commedia dell’arte, a stock character clown that originated in the 17th century. It would only make sense to name a clown sheep after a famous clown archetype. The name was also adapted as a loanword, ‘Piero,’ which is synonymous with ‘clown.’  Some have argued that his name is just ‘Pie Throw,’ sans the ‘H’ and the ‘W.’