--- A confusing or disorderly state or collection; or the creation thereof. Excessive, unnecessary or uncontrolled clutter in a home or office is a sign of Compulsive Hoarding .
--- Unwanted echoes in electronic systems, particularly in reference to Radar s. Such echoes are typically returned from ground, sea, rain, animals, Chaff and atmospheric Turbulence s.
--- The jumble of odd posts placed in the first Top Level Post of a User Friendly member's diary by the Cluttersquad
--- Clutter (marketing) The extreme amount of advertisements or products the average American consumers comes into contact with.