squush /skwʊʃ/exclamation 1noun 1verb 1forms 3 exclamation1 •A squashing or squishing sound.Some men in the cellar were mixing mortar in trays with hoes. We watched them put sand and cement and lime and water together. Squush! — 1942 noun1 •A squashing or squishing sound.A few yards downstream was a stretch of sloping rock and moss, and here all clamor ceased: only the close-placed ear could detect the muffled squush. — 1949 verb1 •(US, rare) To squash or squish. formssquushed · squushing · squushes