splosh UK /splɒʃ/US /splɑʃ/noun 3verb 3forms 3 noun3 •A heavy splashing sound. •A spilt or dropped liquid or semi-liquid substance.A medium-sized paper filled with sensible articles to the point, is better than one full of splosh. — 1871 •(UK, slang) Tea (the drink).Give us a cup of splosh, love. verb3 •To splash with a heavy splashing sound.Sometimes someone would take a wrench to a fire hydrant, jam a crate up to its nozzle, turning the whole of it into a fountain for us kids to splosh around and play in. — 2009 •To spill or spill over. •To traverse mushy or marshy wetlands. formssploshed · sploshing · sploshes