Same relation as a stepsister, but with positive connotations as opposed to the negativity that is typically associated with a Stepfamily. Bonus family members are chosen freely and they enrich your life.
My mother remarried after I moved out of the house. I am a good friend with her new husband. As an added bonus, I was introduced to an awesome new awesome friend: my Bonus Sister.
by DieDirk May 14, 2016
Get the Bonus Sister mug.Someone whom is your sister or someone who resembles a sister, that will always have your back and is your bestfriend at the same time
by Momma cat August 27, 2017
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Siiter
• Sister
• Shiterature
• Sister-In-Law
• shiternet
• sister fister
• sister fucker
• Sitter
• sister squad
• Sisterwife
by The Sex Panther April 5, 2008
Get the dick sisters mug.The only two people in the world who are more undeserving of their wealth than the Osbourne children are the Hilton Sisters.
by Chernorizets Hrabr November 26, 2004
Get the Hilton Sisters mug.this is when you have wireless internet and take a crap while having a laptop in your lap that is connected to the internet. developed while actually shiterneting
dude last week i took this shit and i was talking to my girlfriend online at the same time. i totally shiterneted
by puck August 11, 2004
Get the shiterneting mug.by Taboo topics February 1, 2018
Get the Step sister mug.Lady One- "You've slept with Jack Derringer too?"
Lady Two- "You know that makes us pogo sisters now, right?"
Lady Two- "You know that makes us pogo sisters now, right?"
by TheHalfway January 24, 2011
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