I know I shouldn't have asked.
Here's a selection of what I got
BFD Big Freakin' Deal (polite form)
BFD Barne- og Familiedepartementet
BFD Binary File Descriptor (computer programming)
BFD Conker's Bad Fur Day (video game)
BFD Buffalo Fire Department
BFD Behringer Feedback Destroyer (home theater)
BFD Blackfathom Deeps (World of Warcraft instance)
BFD Bidirectional Forwarding Detection (IP networking)
BFD Brake Force Display (BMW)
BFD Boston Fire Department
BFD Back from the Dead
BFD Bradford West Yorkshire (UK)
BFD Bradford, PA, USA - Bradford Regional (Airport Code)
BFD Big Freakin' Deal (concert)
BFD Beer For Dolphins (band)
BFD Budgerigar Fledgling Disease
BFD Bowling for Dollars (1970s-era TV game show)
Bfd Behindertenfahrdienst (German: Transport of Disabled)
BFD Bellingham Fire Department
BFD Berkeley Fire Department
BFD Back Focal Distance
BFD Burnaby Fire Department
BFD Base Flood Depth
BFD Baked Fresh Daily (band)
BFD Baltimore Fire Department
BFD Basis for Design
BFD Basic File Directory
BFD Big Furry Deal
BFD Battery Firing Device
BFD Bartech Focus Device
BFD Bruce F. Dyer (BFD Productions, Inc.
BFD Burger Fries Drink (fast-food)
BFD Better Follow Directions
BFD Baseline Freeflight Display
BFD Best Food Day
BFD Budget Formulation Directive
BFD Binghamton Fire Department
BFD Beruff?rderungsdienst (German)
BFD Book Form Drawing
BFD Big Freakin' Day (concert sponsored by Live 105)
BFD Bridge Forward Delay
BFD Big Freakin' Dog (polite form, as used on police radio)
BFD Buckskin Fire Department (Parker, AZ, USA)
BFD Buyer Furnished Data
BFD Bureau of Food and Drug (Philippines)
BFD Balanced Frequency Doubler
BFD Business Function Decomposition
all courtesy of a site called
http://www.acronymfinder.com which came up in the google. It's a treasure trove of useless acronyms. I also found the drum guys by the way.
LLG (anacronym for Long Live Google (submitted by me))