B line 

A B line refers to the direction in which a bee flys after gathering nectar. Bees use the sun to navigate their way around and when they are ready to return to the hive they fly in a straight line back. This is why when someone is trying to get to their destination quickly they are said to be "making a B line".

Alyssa made a B line home after work.

B line by Crazy Carrie June 30, 2007

B line 

running a straight line (used mainly in sports)

bitch go run a B line to the 15 yard line

B line by cory dwayne September 13, 2005

B line 

A hemp string dipped in melted beeswax used for lighting bongs and pipes. It makes it easier to light and gives the weed a slight honey flavor.

B line is super dank and easy to make yourself

B line by Ganjacooker November 23, 2009

B line 

1) noun. Another name for the massachusetts suburb of Brookline.
2) noun. to quickly make your way towards something, usually out of an awkward situation.

I was on my way to the cape, but got lost in marshfield, I bumped into some scary people, so I had to make a quick B line for B line.

B line by slatkaya devochka November 12, 2003

B line 

Another word for bass...

A:Hey yo was u heard that new track?

B:Hell yea...The 'B-line' is sick.

B line by Special-K July 18, 2005

b line 

The act of Instantly locking your vision on breasts that just came into view.

Sometimes occuring when in the middle of a conversation the girl lifts up a first layer shirt revealing a cleavagy shirt underneath and expects you not to look.

Girls will often call you out on it even though they do it on purpose.

I was in the middle of talking, and you totally b lined when you saw my bikini top that I was revealing in front of you. Perv.

b line by Shad0wStalk3r July 21, 2006

B line 

Short for Body Line.

1)To describe when something is close fitting.

1) Damn! That dress is b line

B line by Titn ey November 9, 2008