BSM 

Brother sister moments. Used in fanfictions.

Sam and Dean Winchester (BSM)

BSM by SuperUnNatural666 November 5, 2017

BSM 

A hockey high school in St. Louis Park, MN. School where you can steal Otis Spunkmeyer muffins, graffiti walls in the bathroom, make hot mom lists in stall number four, smoke weed in the bathroom, have sex in the parking lot, parade through the orthodox jew neighborhood, skip class, steal lunch cards, boycott the homecoming dance, text during class, and set pornos as other peoples background on their account in the library.

Lame SLP Kid: Dude, look at those BSM kids. I wish i were like them.

BSM by freek612 January 12, 2009

BSM 

Know for their choir's beautiful rendition of the African song "Zha MuranZha" and tasty cookies

BSM choir singer: "Zhaaaaaa Murrannnzhaaaaaaaa"

BSM by anonymous326 January 10, 2009

BSM 

Benilde-St. Margaret's High School. Hard-knock private school in St. Louis Park, Minnesota. Notorious for in-school crime, ie. students stealing Otis Spunkmeyer cookies from the "slow lady".

Did you seem those thugs from BSM drunk drankin' da mocha at Caribou?

BSM by Anonymous Coward May 3, 2003

bsm 

When something happends at bsm, nothing happends, its just another dead mother fucker. A hard knock high school located in dangerous, crime filled neighborhood St. Louis Park, Mn. Notorious for it's in-school arrests and drive-by shootings, bsm is one of the toughest schools out there.

kid: yo u hear there was another drive-by at bsm today?
other kid: when isn't there a drive-by.
kid: it must be scary going there
other kid: its a rough place were u gotta protect yo shit and not be afraid of nuttin

bsm by MPLS' FINEST January 14, 2008

BSM 

1.)Something, such as a belief or institution, that elicits blind and destructive devotion or to which people are ruthlessly sacrificed.
2.)An overwhelming, advancing force that crushes or seems to crush everything in its path

Donnie - Can I be BSM?
Justin - Only if you show your penis to that train conductor.
Donnie - OK.

BSM by Frank Stallone May 4, 2004

BSM 

Stands for Brother/Sister moment, usually used in the title or description of a fan fiction. Closly related to DDM and usually is a fluffy moment where you are the brother/sister to a fictional character.

I read some really good Sam and Dean Winchester BSM on wattpad yesterday, it made me cry.

BSM by ConfusedCat June 11, 2018