plashy (?plæ??) adj, plashier or plashiest1. wet or marshy2. splashing or splashyCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014plash?y (?plæ? i) adj. plash?i?er, plash?i?est. marshy; wet. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.