peter

Concise Oxford English Dictionary © 2008 Oxford University Press:
peter1

▶verb (usu. peter out) diminish or come to an end gradually.

– origin C19: of unknown origin.

Concise Oxford English Dictionary © 2008 Oxford University Press:
peter2

▶noun informal

• 1 a man's penis.

• 2 Austral./NZ a prison cell.

• 3 a safe or trunk.

– origin ME: from the given name Peter.

Concise Oxford English Dictionary © 2008 Oxford University Press:
peter3

▶noun & verb Bridge another term for echo (sense 3 of the noun).

– origin C19: from Blue Peter (the action being likened to the raising of this flag).