In Italian language "santi" is plural of Saint..like "Saint Peter".It comes from old latin "santus-santi"..
In italian language Santo (singolare) Santi (plurale)
In spanish is the same "Santo Domingo"..means "The saint of Sunday"
or the Saint of Lord..because The Lord is called also "Dominus -e" from latin..

A word used by the friends and the members of the band The Academy Is...
"Santi" was the shortened version of "Santiago," the last name of a boy that Adam T. Siska (bassist for the band), knew and strongly disliked in high school. Perhaps "santi" was initially used as a way to refer to Santiago derisively, but eventually the band began to use it as a greeting, a word of praise, or an expression of anything good.
Fans made Adam about a million shirts that said "Santi" on it for a while, which he was delighted about.
"Santi" was also tatooed on Andy Mrotek aka Butcher, the drummer for the band. You can see it for a moment in the video of the band's song "Slow Down." The tatoo was located on his butt before he replaced it with a different one.

Everything positive.

The Academy Is...'s lead vocalist William Beckett told BLUNT magazine:
Adam and I went to the same high school, and there was this dude there named Josh Santiago. I was doing a solo project at the time, and I was listening to different music than most people. So this one guy in particular, Josh, gave me a hell of a time, like busted my chops and called me negative names like "fag" and stuff. He was just that kinda guy. So we started saying Santi as everything that wasn't him - everything that was positive, just because he was such a negative dude and such a terrible person. So we started saying Santi as something funny and kinda cool, kinda like a "cheers" or we say it as a greeting.

The furthest thing from emo.

pronounciation: \sahn-t\
function noun
1a. one who accepts nothing but truth, b. a empirical person, c. a person who is honest to a fault.
function adjective
2a. one in accordance with the actual state of affairs.
function adjective
1a.disposed to truth. b. legitimate

Short for the name "Santiago"
a hispanic-american boy with light skin
athletic, yet has a musical side
is shy at first but has an amazing personality
thinks like a guy but acts like a gentleman
sometimes messes around with friends

but always makes time for his girlfriend
is very intelligent, but has a funny side
his smile is infectious, it makes everyone around him smile
most of all, has a clear goal in his life

A superior type of human.
A santi is extremely good looking, they posses a unique beard and style.
It is said in the greek mythology that a Santi comes every 100 years to show perfection to the human world

The only thing that can attack Chuck Norris and survive. Some say he went back in time and fought Jet Li, Bruce Lee, Chuck Norris and Jackie Chan at the same time and won.