Bitches Self Destruct. The idea that bitches will get what is coming to them after fucking over a guy (not in the good way). May involve another guy performing a Houdini Surprise on the girl for messing with his bro.
Guy 1: Yo did hear about Rachel? She got a face full of jizz after leading that guy on.

Guy 2: BSD nigga
by negrosaurus January 20, 2011
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Back seat driver (A nagging person sitting at back seat of the car. Can also be used in an work environment (micro manager)
That manager is a BSD, he is always looking over my work and correcting it.
by Rageanitus February 5, 2014
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Bermuda Shorts Day, an epic university-wide party and U Calgary. Takes place every year on the last day of lectures. Originated in April 1961, with the majority of campus students attending in colourful summer shorts. Modernly takes place in the University parking lot #32, with music, beer and overall awesomeness. Was proposed to be renamed to "Bitchin' Snowpants Day" due to the unusually snowy weather conditions on the 50th aniversary (2011).
We are going to get smasehd on BSD.
BSD is the best day of the school year.
by Nar-Whal April 14, 2011
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Berkeley Standard Distribution.
This is Berkeley Universities Implementation of UNIX. Although BSD is not a registered UNIX BSD includes source code from the original System V in its kernel.

see FreeBSD, OpenBSD, NetBSD.
Haha, I laughed as the linux kiddie ran his outdated bind exploits on my OpenBSD
server.
by end_user November 11, 2003
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BSD: Bangs sluts daily

Used to describe someone who was sex with hot women on a daily basis
Guy 1: How does that guy manage to BSD?
Girl 1: I hear he has a huge dick
by Blaze Stalion September 26, 2011
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Bsd
B'Siyato Dishmaya - with assistance from Heaven.

BS"D is an abbreviation of an aramaic phrase used mostly in the Jewish culture implying a reminder of, and eliciting, help from G-d
Often written at the top of a letter or document.

Trivia reference: copies of Christopher Columbus' letters all contain a small monogram, many assumed it is this.
Bsd

Dear x,
It was great to...
by Rabbi Zalman August 29, 2018
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