walls have ears

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

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

:  one of the sides of a room or building connecting floor and ceiling or foundation and roof

:  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