The real definition to this word is something else. Most posted here are of angry people spitting out outrageous words believe it or not.

-A member of a sect of Adventism distinguished chiefly for its observance of the Sabbath on Saturday. Very kind people who welcome anyone with a helping hand. Do not cause harm or force anyone to love God but it is a mere choice. Have real morals and beliefs and a strong foundation. Everything is backed up correctly. Many facilities are based and started up from the SDA.
Mark: Hey Paul can you cover my shift on monday?

Paul: Sorry I am SDA and must attend practices for religious reasons. How about any other 2 days you need to be covered for?

*Hospitality and Godliness

Just a mere definition and example.
by helloitsfactz August 19, 2011
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SDA

Adj. Desdribing unfavorable traits of character or circumstance stemming from a false or irrational foundation. temporary or permanent.

i.e. Something that sucks and makes no sense.

Orgin - Acronym for Seventh Day Adventists
Example:
"Your girlfreind thinks you cheated on her?"
"Yeah shes been pretty SDA lately"
by souplogic October 27, 2004
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SDA SDA SDA SDA!!!
by Sassen Holla September 30, 2010
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sexual display of affection as oppose to pda (public display of affection). to describe those couples who just can't keep it in their pants in public.
"dude jack and jill need to cut back on the SDA, it's totally uncalled for"
by swiss1o1 May 13, 2009
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Acronym for "Spontaneous Display of Affection" Can occur in person (hugs, kisses, etc.), Over the phone ("i love you"), over email or IM (emoticons, typing).

SDAs generally occur after long silences. It is not considered an SDA if it is brought about by any action of the two (or possibly more) parties.
<Jack and Jill are silently walking>

Jill: (out of the blue) I LOVE YOU I LOVE YOU I LOVE YOU! (hugs and kisses Jack)

Jack: Boy, it seems i am at the business end of a serious SDA!
by Lomov January 21, 2010
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when a runner is struck with a sudden urge to take a massive brick shit during a long run(results can be more violent if sprinting) aka: (sudden dump attack)

Can be treated with a pre-run dump. Not always 100% effective. Symptoms may include ED and explosive diaheria.
oh Goddamn they are banging on the door wanting out. hold in the SDA~!
by Ragnar 38 January 17, 2008
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A scumbagdouchebagasshole
Jimmy is such an SDA.
by AnnieWithDatFanny February 24, 2017
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