Nielsson 

An extremely aggressive reaction, can also be used to describe a violent person, often a ginger.

Wow, he went completely nielsson on that guy!
Or; wow, what a nielsson, aka. what a psycho.

Nielsson by Ahove July 6, 2010

James Nielssen 

A slang term used to define people of great social wealth, class, popularity, and overall greatness. If you are called a James Nielssen it is a HUGE compliment and you will want to remember that forever. They are commonly know so socialize with people called "erk"s, who are also very dominant around the socialogical "watering hole". If a person is called this, they are usually great at everything to do, and you have yet to find one bad thing about them. They are compared to God in many political and social debates, and have almost been banned by the U.N because too many people were committing suicide, due to the fact that they knew they could never be a James Nielssen.

Erk: Wow, this guy is great, i guess ill call him James Nielssen.
Derek: Thats a great idea! He must be perfect in every way.
Jacob: Obviously.

James Nielssen by erkthejerk3499 October 28, 2010

Nielson 

The rotted remnants of seman left behind after gay anal sex.

Dont get that Nielson on you. You'll never get the smell out.

Nielson by Johny Hopkins January 30, 2009

Elden Nielson 

See: Vu

Elden Nielson by Cornellius McGilacutty April 10, 2003

Nilsson 

(n)one whom believes the person to the right of them in a school cafeteria is gorgeous

greg: WOAH did you see timmy today?!?!
bob: yeah man he totally pulled a nilsson and i was like WTF LOLOL
greg: yeah man he's gonna he his ass beat by a polar bear.

Nilsson by sevensexualsneakers March 12, 2009

albin nilsson 

Albin nilsson is a very cool Guy who is very kind. He is a awesome guy if you get to know him.

Hello My friend if you live in Vårgårda you now who Albin nilsson is

albin nilsson by Boooom im cool December 12, 2016

joakim nilsson 

Cant get it up

Cant get it up when sexy time Joakim nilsson

joakim nilsson by Odio November 9, 2017