adult onset downs (A.O.D.) 

a gradual transition into the realms of trisomy 21 usually occuring after adolesence
symptoms include:
a gradual lowering of the i.q.
tounge lolling
compulsive masturbation

"Lily is getting dumber by the second, maybe she has adult onset downs (A.O.D.)"

adult onset downs (A.O.D.) by Andrew LeDOWNS October 20, 2008

Adult Onset Diabetes

More correctly, Type 2 Diabetes. It is a form of Diabetes caused by complex interactions between carbohydrate consumption, insulin resistance, and obesity.

The United States has an epidemic of obesity and Adult Onset Diabetes due to the effects of eating according to the Food Guide Pyramid and % Daily recommended allowance.

Adult Onset Diabetes by Downstrike June 26, 2004

Adult Onset Autism 

1. Adjective. When an individual exhibits or develops behaviors in the autism spectrum, at an advanced age. Typically occurring from misdiagnoses or underreported cases. Affects ages 19-50, NEETs, and many a weeaboo.

Symptoms: increase in frequency of dropping Spaghetti and general lack of self awareness at an age where one is supposed to be accustomed to social norms and rules of social engagement.

"Yeah, that guy has Adult Onset Autism or something. He won't shut up about video games at the bar when all these cute girls walk by."

Adult Onset Autism by DuedBraj December 25, 2014

adult onset downs (A.O.D.) 

a gradual transition into the realms of trisomy 21 usually occuring after adolesence
symptoms include:
a gradual lowering of the i.q.
tounge lolling
compulsive masturbation

"Lily is getting dumber by the second, maybe she has adult onset downs (A.O.D.)"

adult onset downs (A.O.D.) by Andrew LanDOWNS January 22, 2009