Definitions by Damau5

Ringo 

A warning of imminent danger; mainly an approaching teacher or other person capable of disciplinary action.

Variations:
-Ringaramos
-Ringatron

Man 1: "Dude so last night i went out and..."
Man 2: "Ringo."
(Authority figure passes)
Man 1: "Thanks man."

Ringo by Damau5 April 14, 2010