squish / skwish/ • v. [intr.] make a soft squelching sound when walked on or in: the mud squished under my shoes. ∎ yield easily to pressure when squeezed or squashed: strawberries so ripe that they squished if picked too firmly. ∎ [tr.] inf. squash (something): Naomi was furiously squishing her ice cream in her bowl. ∎ squeeze oneself into somewhere: she squished in among them on the couch.• n. [in sing.] a soft squelching sound.DERIVATIVES: squish·y adj. (squish·i·er, squish·i·est) .