When somebody is reincarnated and returns as someone who is mentally challenged or retarded.
There was a boy who came back as a retard after being a famous celebrity in his previous life. Such beliefs stem the Buddhists who believe in Reincarnation, well reintardation is when someone comes back as a mentally retarded person.
by Phaenixdrools April 19, 2009
Get the Reintardation mug.
Converting to a new religion and ending up more stupid than before.
His constant preaching is a sign of reintardation,
by Blursaw February 11, 2010
Get the Reintardation mug.
Did you here Spud was shot while hunting? Mary Jane And Billy Bob just had a baby, I think it is Spud Reintardated!
by TheCowboyofKhaos February 14, 2004
Get the Reintardation mug.
It means coming back to life as a RETARD, not as a hillbilly.

The person who posted the previous definition was thinking of reintarnation.
Damn, it was quite sad that Mark's ubergenious rocket-scientist son had just died in an explosion while working on the latest space shuttle 9 months ago. However, my neighbors next door just had a kid that looks like Mark's son when he was baby, though I heard the kid was diagnosed with Fragile X syndrome! It looks like Mark's son has reintardated(reintardation)! Whoop-dee-doo.

---------
Mark H. Proud Urban Dictionary Slang Author since February 2004.
by Mark H May 9, 2006
Get the reintardation mug.
When a person who was banned for hate speech on Twitter gets their account reinstated by Elon Musk
Ye is back on Twitter! Elon put him and Donald Trump through reintardation.
Get the reintardation mug.
The cycle of retarded/stupid people being born over and over again.
The state of society is not going to improve until we learn to break the cycle of reintardation.
by P Schwangles May 1, 2019
Get the Reintardation mug.