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3.
This is a name derived from the name Saied, It means to be happy; or also lucky.

This is a very cool uncommon name. There is also a Island Named after Sado.

Sado Islands off the coast of Japan.
Hey Sado, Whats up man, are you going to fly to the Sado Islands.
by Sadoooo July 24, 2008
 
1.
A Malaysian slang, commonly used by teenagers. It describes someone who is strong and muscular. It was actually originated by the word 'Besar Bodoh' (meaning the person or it is huge) turn to 'Besar Do' ('Do' as in Bodoh as in Stupid) and lastly to Sado.
A muscular guy passing by.
Abg Kacak : Dude! look at that dude's figure! Sado sial!!
Another guy : Ikr.

Sial = something like stupid dumbass, but through the above conversation the person really didn't meant it.
here's an example on something similar e.g ;

Dude : man tht motherf**ker is huge! (again in that conversation the person didn't really insult to what he was pointing at)
by HazPlay November 01, 2010
 
2.
Just another term for idiot, loser
Look at what she is doing, shes such a sado!
by Angel9t9 August 15, 2004
 
4.
Best gamer alive.
sado owned our whole team bad.
by Bob March 23, 2004
 
5.
Suck A Dog Off. used as an insult, or to signify someone is full of shit.
Alpha: dude, im so awesome
Beta: SADO
by Raevn September 08, 2007
 
6.
pronouced: SAD-O
My own home-made spanish word. It could mean your sad or that your sighing or both. Is a very fun word to say.
1)SADOOOOOOOOOOO!*TEARS*
2)*sigh*ahhh sado.
by Nicole Morrow April 28, 2005