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15.
SDS
Short for Some Dumb Skank. A name/label given to a female who is undeserving to be called by their real name.
I'm so glad I finally broke up with SDS.
by Shaun Poteracki October 23, 2006
 
16.
SDS
-Second Date Syndrome

1. Having already met a girl or guy the day before (often at night) and you two were just so into each other, the second time you meet and for some reason they don't look as attractive or seem as interesting as they did before.

2. When meeting a particular person you had a hell of a lot of chemisty with at a previous time and for some reason it just isn't there anymore the second time you meet.
Josh: Man, I'll tell ya I was really feelin' this girl last night when we met at the park, but for some reason she just ain't as fun and sexy as she was before...

Jerry: Ha ha. Sounds like ya had a case of SDS. Sucks for you...
by Domah Da Duce September 25, 2006
 
17.
SDS
An acronym that stands for Same Day Studying. In reference to high school and college students who wait to study until his or her other classes on the day of the test.
"John what're you doing?"
"Oh just a little SDS."
by Tyler Maloney November 13, 2007
 
18.
SDS
Sore Dick Syndrome. To have a sore dick.
I went out and got hammered last night and woke up naked on the floor with SDS.
by Fryhtanic April 09, 2004
 
19.
SDS
The "clan" or group of friends formed originally in the Starcraft channel "aoe" but changed the name to SDS because it got too crowded, then created many Yahoo! Groups.

The shortening of "shutupdangit" to the initials of SD and the shortening of "Dargoon_Slayer" to the initials of DS. The two put together make the initials of SDDS, or SDS when shortened.
SDS Rulez!
Join SDS today
I am a member of SDS
by shutupdangit August 13, 2003