Niecester 

A term used for a person that is a sister and also a niece

She is my sister and my niece, therefore she is my Niecester.

Niecester by Njen28 August 24, 2016

NicsterV 

What that "ZephPlays" guy said. Seriously, what he said is true. NicsterV is a fucking clickbaiter that all the 4-10 year olds watch.

Random 8 year old imposter: I am real nic
Me: No you're not. Besides, even if you were, I fucking hate NicsterV anyways, so shut the fuck up.

NicsterV by PI55 September 3, 2018

Nicksters

A name that defines the fans of nicholas mcdonald. Nicholas mcdonald is the runner up of the xfactor 2013. (He's fab)

All of the nicksters cheered as Nicholas entered the stage.

Nicksters by Thenickstercrew January 22, 2014

Noncester 

A noncester is not just your average, small time nonce.

A noncester is prolific in his fiddlings of multiple victims and can only be described as a monster nonce for his many deplorable acts of paedophilia. A Noncester.

Bailey, mate, clock that guy by the main school gates. It's Keith the noncester spying the hopscotch again.

Noncester by Mighty Ducks Sunshine Beam January 22, 2019

nieceter

When your niece becomes your sister after your parents adopt her.

My sister has real issues, and my parents have to adopt her daughter. Now I have a nieceter.

nieceter by Uncle Bro June 19, 2010

Nickster 

A putt in golf that is absolutely going into the center of the hole when, at the very last second, is mysteriously taken over by an unknown gravitational force, dives for the edge of the hole and violently lips out. This usually occurs after all of your playing partners have conceded the fact that you hit a great putt while secretly willing you to miss.

Good par Bill, OH NO, a nickster! How did that not go in?

Nickster by George Munson October 22, 2007

Niester 

An unusual possibility of someone whom is a niece and a sister at the same time; capable of occuring when a woman has a child with a father and another with his son, or when a man produces children with a mother and a daughter, the niester being the result of the one person and the younger generation (having the child with the son or daughter) as related to the other child.

Family reunion this weekend! I can't wait to see Colleen, whom is my niester. What's a niester you may be asking yourself? Well, my Dad had a kid with my sister, which makes her my sister and my niece at the same time. Yeah, I know, we're a bunch of rednecks.

Niester by fartknocker101 December 22, 2009