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14.
SAD
An acronym for two mental disorders:

1) Social Anxiety Disorder
Also known as social phobia. It is a fear or worry about social situations. People with SAD often appear as being shy, but in extreme circumstances sufferers can become extreamly depressed and suicidal. Social anxiety causes difficulty with social interaction. It is a mental illness and should not be seen as just shyness.

2) Seasonal Affective Disorder
A mental disorder which causes the sufferer to become extreamly depressed during the colder, darker winter months. Although it's not known what causes this, it is still a mental disorder and should be treated as such.
1) My SAD has stopped me from going to many parties. I don't go out much.

2) I go on holiday to Australia during Englands winter months to avoid setting my SAD off.
by Whiptail August 19, 2007
 
1.
Sad
An acronym for "suck a dick." Often used as a command.

This form is often more offensive than just saying "suck a dick" and it can be used anywhere in public.
"Pay attention to me, I wanna play, your making me sad..."
-Sarah

"Sarah, go s-a-d!!"
-Travis
by do it to it May 22, 2008
 
2.
sad
1) Unhappy

2) Of a miserable state and unenviable lifestyle.

3) Acronym.

Seasonal
Adjustment
Disorder

Medical condition pulled out of the ass of a phyciatrist as an excuse for bad parenting, without saying it.
Little tommy isn't doing shit in school because he has SAD. He does not like daylight savings bullshit, and therefore, spends his time in school beating off to his teacher's fine ass.
by Gumba Gumba April 06, 2004
 
3.
SAD
Sunday Afternoon Drinks.

Because regular folk have to work on Monday, it's wiser to start drinking on Sunday afternoon so you'll be wasted early and can go to bed in time.
Starting to drink too late on Sunday could seriously effect your appetite for

MND, TND, WND, ThND and/or FND and that would be sad...
A: Wanna meet for drinks on Sunday?

B: Sure, but let's make it a SAD, I'm not a sad jobless tosser like the rest of your friends.

A: Noon then?

B: Noon it'll be.
by YoungR October 16, 2010
 
4.
sad
1. something depressing
2. a feeling of being depressed
i was so sad the other night i just wanted to end my life.
by mandy_517 May 18, 2003
 
5.
sad
Fucking PATHETIC.
It's sad that Mark still lives with his mom, even though he's 35.
by A dead bible July 24, 2003
 
6.
To Suck a Dick. See D Lover
Jake, why don't you just go S a D
by John December 01, 2003
 
7.
Stands for Singles Awareness Day. More commonly known as Valentines Day.
Jenny: Happy S.A.D.!!!
Jesse: You're taking not having a boyfriend a Valentines Day hard, arent' you.
Jenny: I'm just fine! *Strangles Jesse*
by Darth_`Eowyn January 24, 2007