Look out

Made famous by the late Ronnie James Dio of Rainbow, Black Sabbath, Heaven and Hell and Dio. Dio would often shout at the top of his lungs in parts of a song "Look out!". Best used in context with a loud raspy voice while flashing the horns. Most commonly heard when describing an impending situation or event loosely connected to Heavy Metal. "Look out" is also a phrase used in tribute to Dio, often yelled by rockers before they down a shot, take a drink or on hearing the opening riff of a Dio song.