Top definition
The term you give to someone with an unstable personality.
A Jaday will be someone that is annoying, self centred, loud, irrational and confusing. But at the same time, a Jaday can be kind, compassionate, intelligent, reasonable, funny and comforting.

It is this polarity in their personality which leads to the conclusion that a Jaday's personality is unstable. On the whole, once you have met a Jaday, your life is richer for the experience.

Watch out for that person, I think they are a Jaday!
by Dr Describer April 14, 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