Top definition
Describing someone who has symptoms of dementia such as difficulty with many areas of mental function.
Hey bro, you are being mad dementiac!
by Rasta Monsta August 31, 2011
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