walls have ears

: a high thick masonry structure forming a long rampart or an enclosure chiefly for defense

: a masonry fence around a garden, park, or estate

: a structure that serves to hold back pressure (as of water or sliding earth)

: to provide, cover with, or surround with or as if with a wall

: to separate by or as if by a wall

: immure

: to roll in a dramatic manner

: to roll (one's eyes) in a dramatic manner

: the characteristic vertebrate organ of hearing and equilibrium consisting in the typical mammal of a sound-collecting outer ear separated by the tympanic membrane from a sound-transmitting middle ear that in turn is separated from a sensory inner ear by membranous fenestrae

: any of various organs (as of a fish) capable of detecting vibratory motion

: the external ear of humans and most mammals

: the fruiting spike of a cereal (such as wheat or corn) including both the seeds and protective structures

: to form ears in growing