Definition of pip-pip-pip in English:

pip-pip-pip

noun

  • 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.

Origin

1930s; earliest use found in Discovery: a monthly popular journal of knowledge. Reduplication of pip.

Pronunciation

pip-pip-pip

/ˌpɪppɪpˈpɪp/