Top definition
Mess entropy refers to the tendency of a room to naturally become less tidy as time progresses. May be expressed mathematically as:

dE=dM/t

where E is the mess entropy, M is the actual amount of mess, and t is a given time interval.
Regardless of a room's size, mess entropy will expand to fill it.
by Darth Ridley February 21, 2007
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug