What is "squashable"

Usage examples of "squashable".

He could recite a spell and free himself, but his captors would no doubt turn him into some easily squashable creature, like a caterpillar or slug.

Del and I busied ourselves with untacking and grooming both mounts, swapping out bridles and bits for halters, pouring water into the squashable, flat-bottomed oiled canvas bags doubling as buckets, and offering them grain as a complement to the grasses.