Dam Slapper
From Openwaterpedia
noun - Dam Slapper is an open water swimmer who slaps his or her hand at the end of an open water swim in a dam or reservoir against the wall or structure of the man-made body of water.
The Dam Slapper finished with a flurry and a mighty yell when he slapped the finish wall.
Origin
First used in reference to Nejib Belhedi, circa 2013 by Jonathan Joyce.
