squish /skwɪʃ/ BrE AmE verb
[ Date: 1600-1700 ; Origin: squash ]
1 . [intransitive always + adverb/preposition] to make a soft sucking sound by moving in or through something soft and wet
2 . [intransitive and transitive] informal to ↑ squash something, especially something soft and wet, or to become squashed