B.F.G. 

Big Fucking Gun. A POWERFUL munitions device seen mainly in Hollywood action and science-fiction movies, first sighted in possession of Colonial Marines in James Cameron's epic "Aliens" (1986); now seen in almost every dark-themed science-fiction or action film since. Dark, hulking, made of questionable metal alloys that do not exist yet. Fires: plasma, explosives, Big Fucking Bullets, anything it fucking well feels like.

Also seen in various anime films.

A popular user option in "Doom", and used vigorously in the feature film version of the game. Other names: Standard-Issue Big Gun, S.I.B.G., Big-Ass Gun, B.A.G., copwaster. For more details, visit Wikipedia entry "Aliens" (motion picture), and see paragraphs devoted to weapons created for and seen in the film.

Strongly desired by Daily Show host Jon Stewart, who during a "Doom"-related TDS interview with The Rock, claimed that he "got a hard-on" after temporarily gripping a B.F.G.; The Rock verified that Stewart indeed did get an erection after holding the weapon. Such is the power of the B.F.G.. If a B.F.G. can give Jon Stewart a hard-on, you would be wise not fuck with it.

"You get in my face, I will so waste your hillbilly ass with this B.F.G.."

or

Seen used in "Aliens" by Private Vasquez immediately following the line, "LET'S ROCCCCCCK!"

B.F.G. by Brandywine September 19, 2006

B.A.T 

big ass titties: usually refers to a friends mom that has Voluptuous titties that you wish to caress and titty fuck endlessly

a friends mom that qualifies as a milf and a woman with great big titties

B.A.T by boss February 13, 2005

B.A.S.B. 

Call themselves the bad ass soddy boys. It's a bunch of stupid fucking rednecks/wiggers who jump unsuspecting people and steal their money to buy coke. They think they are a gang. None of them can fight by theirself, so expect atleast 7 of these little bitches to show up. They all look inbred.

"Hey, do you see those stupid rednecks over there trying to be hardasses?"
"Yeah, I think they are one of those B.A.S.B. faggots"

B.A.S.B. by yourfatassmom. June 28, 2009

B.A.W.B. 

a white male who is considered to quite tough. Bad Ass White Boy.

Wow, he is one B.A.W.B.!

B.A.W.B. by Aharon McCune May 14, 2006

B.o.B 

Also known as Bobby Ray, He is a Rapper from ATL signed to Grand Hustle Ent., T.I.'s record label

Person 1: Who The F#*k is B.o.B?
Person 2: Bobby Ray, Straight outa ATL

B.o.B by I'm Dat Nigga June 27, 2009

B-Ring 

B-Ring (Brown-Ring) is slang for 'anus'.

The term was invented by an urban legend who goes by the name of Austin Freeman.

- "Your B-Ring smells like condoms."

B-Ring by The messenger September 11, 2012

B-Girl 

B-Girl is a prostitute, but not because she is a bar girl. It is because California Penal Code section 647(b) prohibits prostitution. Vice cops started calling them B-Girls and detective writers publishing in Los Angeles many years ago picked up the term.

Hey partner, go hook up that B-Girl.

B-Girl by CFBruno January 9, 2011