When two best friends are so close that they consider themselves as sisters !
- Pauline and Catherine are really close!
- Yeah! They're BSF s :)
"Bull Shit Foursome"
Four friends who often go out together on random crazy adventures and day trips.
Let's go out BSFing this weekend!
BSF - Best Skype Friend
When you have a best friend, who is on skype.
This could change if you have a better friend on Facebook or MSN
BSF is only related to Skype
Ryan is my BSF. I enjoy sending him poems.
Ben is not a good BSF he talks to other people on skype more than me.
Ben - Hey will you be my BSF?
Travis - No how could you say that? I already have one!
Someone who is a BOOB STARING FREAK. Usually straight guys.
"oh my gosh that chick has got a nice rack!"
Four friends who often go out together on random day trips together.
Hey, you guys want to come out on a BSF day out soon?
How low do you hang?
Ball Sag Factor
How's the BSF today?