(Verb) To terminate something in an abrubt or unexpected fashion. Derived from the sudden ending of Sergio's (BE) performance ("Sister") at the Eurovision songfestival in 2002.
After Jack was diagnosed with several STD's, he sistered his relationship with Svetlana.

"Art. 3: Watching midgetporn during working hours will sister this contract of employment and nullify all duties of the employer."

The problem with urinating from the Eifeltower is that you can't sister if the security guard catches you.
#terminate #end #finish #stop #conclude
by Nasemeister December 12, 2012
Top Definition
creations of satin designed to search and destroy the older sibling
my sister is eating my arm
#brother #sibling #girl #boy #evil
by neiketto23 March 13, 2009
A person created by your parents for the sole purpose of giving you a convienient girlfriend.
Boy: Let's have sex!
Sister: Ok...but that's the twelfth time today, not counting the anal!
#incest #sis kiss #girlfriend #brother #bro #sis
by Pansy and Proud March 31, 2006
A female with whom you share parents. Depending on the birth order she can be 1. your friend or 2. the BIGGEST BITCH EVER.
1. My sister is going to take me to see Iron Man 2.
2. My fucking sister just stole my wallet.
#sister #friend #bitch #girl #money #movie
by 2buckchuck July 29, 2010
your sister is the girl that will always be there for you and may save you one day, wether you know it or not. your sister may or may not be related to you and could just be an amazing friend, but either way your sister is always slow to judge and quick to forgive. she will always love you, she might just hide it from you.
stevi is like my big sister, i love her and always will.
#stupid #urbandictionary.com #is #making #me #do #thiss #>:
by jennifurrrr December 23, 2006
a strange alien species which is out to wreck male human life.
my sister is an alien out to ruin my life.
#ssisster #sisster #siter #sisser #sista #sosster
by Orangutan February 17, 2006
How Allie and Erika describe their secret lesbian relationship.
Allie: Oh, oneesan! Feel me up! All the cute green eyed boys are so fickle or homosexual! We're sisters!

Erika: Oh my imouto, I am simply not in the mood! I need to watch more anime sex scenes with my grunting father! He lives for nothing but the climax!
#girls #japanese #lesbians #holden #catcher #bread
by Allie Caulfield February 09, 2008
An anoying person that is related to you in some way and is out to ruin your life.
My little sister is a brat.
by Spice March 06, 2005
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