Sergei Rachmaninoff 

A classical pianist and composer born in 1873 who wrote classical music with balls.
The music of Sergei Rachmaninoff can be described as "Intense Shit."
Rachmanininoff, being Russian, was a bad ass. His music reflects his bad assery with ballsy rhythm and major intensity.

Also can be spelled "Rachmaninov"
Original Russian: Сергей Васильевич Рахманинов

Did you hear Gilels play Prelude Op.23 No. 5 by Sergei Rachmaninoff? Its sick!
Rachmaninoff had some huge hands.

Sergei Rachmaninoff by Rockmaninoff May 24, 2010

Sergeant Johnson 

The token black dude in the Halo series. He knows what the ladies like.

Sergeant Johnson: "Men, we've led those dumb bugs out to the middle of nowhere to keep them from getting their FILTHY claws on Earth, but we stumbled onto somethin' they're so hot for, that they're scramblin' over each other to get it. Well, I don't care if it's God's own anti-son-of-a-bitch machine, or a giant hula hoop, we're not gonna let 'em have it! What we WILL let 'em have is a belly full of lead, and a pool of their own blood to drown in!

...AM I RIGHT, MARINES!?"

Marines: "SIR YES SIR!"

--From Halo CE--

"When I joined the Corps, we didn't have any fancy-schmancy tanks. We had sticks! TWO sticks and a rock for a whole platoon... and we had to share the rock!"

--From Halo 2--

Sergeant Johnson by e4c5 September 18, 2011

Sergen 

Sergen is a wonderful and great person. He is very funny and there for you when you need him. He’s such a good guy and he has a big heart. He’s a really nice friend and he can be cute. You won’t find a better friend than him.

Oh there’s Sergen. What a nice guy!!

Sergen by girlwithabigheart November 15, 2017

Sergei Bobrovsky 

Rookie superstar for the Philadelphia Flyers. He is from Russia and although one of the only things he can say in american is "the cheesesteaks are good here", thats all he needs to know and he is a beast!

Sergei Bobrovsky played great last night and lead the Flyers to a win

Sergei Bobrovsky by SergeiBobrovksyisaB0$$ February 24, 2011

Sergetini 

The art of the homemade Sergetini originates in the City of Montreal. This martini is made with a healthy dose of vodka (mixers choice), a whisper of vermouth, and a dabble of olives and/or pickled onions. The difference between the Sergetini and a regular martini is that no ingredients are to be measured and the alcoholic content increases significantly as the evening progresses.

"Let's get those Sergetini's flowin'!"

Sergetini by Sergemo December 18, 2013

Synergetics 

Synergetics is the empirical study of systems in transformation, with an emphasis on total system behavior unpredicted by the behavior of any isolated components, including humanity’s role as both participant and observer. Since systems are identifiable at every scale from the quantum level to the cosmic, and humanity both articulates the behavior of these systems and is composed of these systems, synergetics is a very broad discipline, and embraces a broad range of scientific and philosophical studies.

Synergetics is a comprehensive study of the universe and does not rely on reductionism like most science.

Synergetics by schmoopiesman April 28, 2011

sergen 

Sergen is a good looking sexy clever guy
Very attractive, handsome and intelcence

You are a such a “Sergen”

What a Sergen looking guy

sergen by MrTasar February 7, 2018