To dumb down is an alternate way to say you're doing "downer" drugs (i.e. opiates, weed, etc)
Time to dumb down boys!

Guy 1: What you up to man?
Guy 2: 'bout to dumb down, what's good with you?
by xio2 August 30, 2010

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Top Definition
to make stupider; reduce the intelligence of
Listening to George W. Bush really dumbed me down.

(dumb down)
by whatserface December 05, 2008

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What happens to people who learn definitions from this retarded site.
I go to urbandictionary daily to dumb down myself with retarded and/or completely incorrect definitions.
by Thomas195 December 06, 2009

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The Urban Dictionary T-Shirt

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the act of making something easier to understand, not exclusive to a sped or retard, first used by Dan Rather on the CBS Evening News
Chadwick: Hey Raul, what did you get on Mr. Abernathy's History test?
Raul: I got a 7 dude
Chadwick: Holy Shit man, Abernathy was using sock puppets to demonsrate Manifest Destiny, how much more does he have to dumb-down the lesson for you?
by MAdude October 07, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

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

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt