by Bliggle liggle diggle September 13, 2008

by Jimi K May 7, 2008

A nine inch angle grinder, a Big Dangerous Bastard. So named because of the number of serious injuries associated with the use of these machines. Banned from many worksites because of this.
"Hey, get that BDB off this worksite ! Nothin bigger than seven inches here without half an hour of paperwork."
by Philthy Phil999 March 29, 2010

BDB is a very sacred practice that the kerbany’s tribe did. BDB is when 4 or more gather in a circle with an offering ( herbs or dry oak) then they say “ BDB come to me with this offering) then they burn the offering , and take the ashes and sprinkle them in the water.
by Tom Palme May 20, 2021
