A person that is idiotic in someway, basically anyway.
You are such a dim dim, why would you eat poison!
by cherryviki5 December 04, 2010
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when you smoke a lotta weed and get really really high
me: i just smoked like 9 bowls out of my 2 foot piece and got so dimmed that i decided to post the word on here

you: i gonna give this a thumbs up
by smoke weed August 20, 2007
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The opposite of 'bright'.
1) Little Tim is rather dim because he can't spell very well.

2) The room's kinda dim; you might need to change the light bulb.
by Diggity Monkeez January 12, 2005
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The opposite of a glow up . An articulate way of telling somebody they aint as peng as they used to be.
I can’t lie. Jason dimmed from last year.
by Arthur Franklin March 16, 2019
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dick in mouth syndrome - when you cant understand somebody because they're mumbling
"kfkhitusdaina"

what was that i cant understand you because you have DIMS
by the fakin Circle February 17, 2009
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