One of the mysteries of the English language finally explained.
In full "pirlie pig". A piggy bank.
Late 18th century. Probably from Older Scots pyrl to thrust or poke at + -y. In the compound pirlie pig the second element is pig [adjective]; in Older Scots pirrel pig occurs in the same sense; the compound thus probably originally alluded to poking or prodding coins out of a pot.
In this article we explore how to impress employers with a spot-on CV.