Best slutty friend- The friend of an ex-slut has from her 'wild years', who unashamedly knows all of her dirty secrets, and more often than not was present for some of them.
The BSF will of course have shared at least one, if not two (and sometimes at the same time) boyfriends or lovers of the subject.
Whilst the subject does her best to hide her past the BSF loves nothing better than to loudly discuss her current and future sexual conquests in front of anyone who will hear.
The BSF of course must naturally do her best to either break her friends relationship so she can bring her back into the slutty fold, or be apathetic about a break up and never encourager her friend to actually try and make something of her life.
The BSF will of course have shared at least one, if not two (and sometimes at the same time) boyfriends or lovers of the subject.
Whilst the subject does her best to hide her past the BSF loves nothing better than to loudly discuss her current and future sexual conquests in front of anyone who will hear.
The BSF of course must naturally do her best to either break her friends relationship so she can bring her back into the slutty fold, or be apathetic about a break up and never encourager her friend to actually try and make something of her life.
Sally and Angie had been friends for years, So sally invited Angie to her wedding. Angie then screwed sallys husband and two of the grooms that night, Angie asked why she did it, she said I am your BSF!
by captianstabber May 17, 2014
by loz333 March 20, 2008
Butt-Sex Friday, a time-honored tradition started originally as a joke in the CU that has grown into a near ritual. Simply put, Fridays are set aside for buttsex, feigned or real, and anal activity is less frowned upon.
by Fbook Masta August 13, 2006
Big Straight Facts-These are facts that are the realest and truest of facts. There is no falsification within these facts.
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by The real urban December 21, 2017
by urnecksmeller(= June 19, 2008