One of the mysteries of the English language finally explained.
A series of three consecutive pips used as a time signal (in a speaking clock service, etc.); a series of three consecutive pips transmitted over a public telephone line as a signal to the caller to insert more money.
1930s; earliest use found in Discovery: a monthly popular journal of knowledge. Reduplication of pip.
In this article we explore how to impress employers with a spot-on CV.