What does BUM stand for?

Bargaining Unit Member - of a faculty union

Black Unaccountable Machine (SAUS)

Blue Mountain Boats, Dayton, WA - Manufacturer code for watercraft hull identification number (USCG)

Boot-Up Manager (XSAL)

Break-Up Missile (MCD)

Bulletin. Societe "Union Musicologique" - A publication

Bulu - Language code (ETLW)

Butler, MO - Location identifier - FAA (FAAL)

Karl Burgsmueller - NCIC firearms make code (NCIC)