This document provides a guide to surf lingo and terms used by surfers to describe their experience. Key terms explained include getting "barreled" or tubed when surfing inside the breaking part of a wave. Having a "good surf" may be described as epic, stoked, filth or sick. Wave conditions can be described as onshore, offshore, lumpy, lined up, peaky, fast or hollow. Other terms explained are the lip of the wave, a floater maneuver, wave height in feet, catching inside waves, duck diving under waves, and wiping out. The guide aims to unravel some of the mystery of surfers' unique vocabulary.