"Skyed an oar" is an expression that refers to when a rower hits the oar against the water surface on the upward motion, causing it to fling up into the air before making contact with the water once again. In rowing, this action can be seen as a mistake that can slow down a boat and waste energy. Synonyms for "skyed an oar" include "catching a crab", "hefty feather", and "popping an oar". These phrases are commonly used in the rowing community to describe the same error. It is important for rowers to understand and avoid making these mistakes in order to perform at their best and achieve their goals.