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Name for an L house nobody pulls up to. They dry and get no britches
Hey are you going to Boysen tonight?
Lol no
Boysen by Dawgiedawgiedawg November 13, 2022
Literally Halmstads mafia runned by young guys. They do whatever they want and no one can stop them.
-Oh, what happened to that house over there?
-Just Böyzen terrorizing... again...
Böyzen by Jachmal October 25, 2018

Bosendorfer 

1. Bösendorfer (L. Bösendorfer Klavierfabrik GmbH) is a piano manufacturer, a wholly owned subsidiary of the BAWAG PSK Gruppe, and is based in Vienna, Austria. Established by Ignaz Bösendorfer in 1828, it is the oldest piano manufacturer still producing its own instruments today.

2. a friend
"My Bosendorfer has a full eight octaves."

"A Bosey is a friend." - Tori Amos
Bosendorfer by underwaterspark September 5, 2008

boygenius 

a band made up of Phoebe Bridgers, Lucy Dacus, and Julien baker created to make sad people sadder
person 1: are you cool?
person 2: i don't know
person 1: do you listen to boygenius?
person 2: no
person 1: you're note cool
boygenius by boobieluvr420 April 15, 2021

Boysenberry Voyage 

To search vividly in large thicket of pubes only to find a blue waffle in which you project vomit into and continue to use vomit as lubricant and rail vagina with an upset stomach.
After going through the boysenberry voyage i donkey punched that bitch in the face.

Can the boysenberry voyage take place in your pants tonight?
someone who wakes up in the morning and pisses excellence
a perfect person = boyse, someone who has no flaws, exceptional in every way
boyse by laksjdfh March 14, 2007