adj. Party pooper. Someone who brings the mood down.
C'mon, Gina, why can't you go out? You're such a downer. :(
by ome deagle July 30, 2005
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street classification of any prescription or non prescription substance that is a CNS retardant, common physical side effects of "downers" are:

decreased heart rate
feeling "stoned"
sedation
lettle or no reflexes
Barbiturates (Tranqs)
Marijuana
Hash
Opiates (Morphine, Codine, Heroin)
by J January 10, 2004
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Something that is depressing.

Can be anything, a person, movie, TV Show, your job etc.
I stopped watching the news because it's always such a downer.

That movie was great until the ending. What a downer.

Why does that guy always have to burden us with his problems? I mean, I hate seeming uncaring but he's such a downer.

by Optomist with experience December 17, 2007
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Pills that make you feel like you are drunk. Things like Ambien are downers. You lose your motor skills, and think really slow/ slurred speach.
I snorted those downers you gave me now I'm fucking out of it.
by S1lly_R4bbit April 9, 2006
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Downer; i.e: To feel let down, expressing anxiety and dispair.
'What a Downer' 'Thats a bit of a Downer'
by redvynal July 30, 2004
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Those stupid little fuckers on Urban Dictionary that find it necessary to put thumbs down on any good definition.
Downers need to go clean off their dirty ass socks
by Smitty Joe May 26, 2005
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1.) A person who brings down the environment somewhere, with his attitude. Also known as a "party pooper"

2.) A very popular camp for middle schoolars in Vermont
1.) This party was off the hook until that downer came along

2.) You didn't do a week at Downer? You missed one off the hook dance
by MattyB August 29, 2005
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