SDD is an acronym for Sun-Dress Disorder.

Sun-Dress Disorder is a mildly contagious disorder in which symptoms are noticable. An individual with SDD is usually a female older than 12, and is seen wearing a Sun-Dress at least three times per week. In severe cases, the individual may wear a Sun-Dress more than four times per week, and sometimes even in inappropriate settings, such as in pools or even during sleep. The individual may be seen wearing a Sun-Dress during cold seasons as well.

SDD is mildy contagious, whereas those who come into contact with an individual who has SDD have a 45% chance of contracting the disorder.

Medications for Sun-Dress Disorder are available but are not currently approved by the FDA, so they are not recommended as they may have severe side-effects. Psyhotherapy and SDD awareness education are best to treat or prevent SDD.

Those living with SDD usually live very normal lives, aside from the excessive Sun-Dress wearing.
"Didn't Beth Anne wear that Sun-Dress two days ago?"

"Yea, I'm pretty sure she has SDD. Her best friend Jackie wears Sun-Dresses all the time too."
by Shuuuz May 17, 2007
Get the SDD mug.
Girl: Wow that's really small

Girl: wait is that an ant?
Girl: Wow U really Are a SDD
by Mr. Bigboy March 28, 2019
Get the SDD mug.
Sensory Deprivation Defecation

When you go the the toilet at work and all the sensor-activated lights go out.
I took a bit long in the john and ended up having an SDD
by grimsheeper March 21, 2017
Get the SDD mug.
Software design and development

New subject available for schools in sydney, unfortunatley lots of cases of really crap teachers who don't know visual basic, leaving the very small majority who can use a computer prior to learn them selves
Teacher: OK class today! im going to teach you that you are supposed ot use IF,THEN,ELSE,ENDIF statement 4 times in one psuedoprogram!
by largo September 22, 2004
Get the SDD mug.
Spelling Defisit disorder,
Some people might calit dyslexia. But it can be cured by alphabteical keyboards and ridalin just like every other problem in the world. If debating the use of the word deficit, it is used to explain the small amout of words that get spelled correctly.
Any one wiht SDD is a selling/grammar nazi's worst nightmare
by Baconater November 14, 2006
Get the SDD mug.