bm

noun1

1. •
   Abbreviation of Builder's Old Measurement.

verb2

1. •
   (informal, euphemistic) To have a bowel movement.
2. •
   To have bad manners.

noun11

1. •
   (US, informal) Initialism of bowel movement.

   • Frequent involuntary urination. Frequent desire for B.M. but no result. — 1911
2. •
   (US, slang) Initialism of baby mama.

   • We broke the story ... the melee was caught on video, and appears to show a group of people attacking Fetty [Wap]'s BM and her friends. — 2019
3. •
   Initialism of ballistic missile.
4. •
   Initialism of black metal.

   • They used to play Burzumesque BM, but moved on to a Doomy sound. — 2000
5. •
   Initialism of black male.
6. •
   Initialism of bad manners.

   • Fans know IdrA for his BM — Bad Manners. — 2014
7. •
   Initialism of body modification.
8. •
   Abbreviation of Bachelor of Medicine.
9. •
   (US) Abbreviation of Bachelor of Music.
10. •
    Initialism of beautiful music.

    • Life support for BM formats Robert M. Lowery acknowledges that beautiful music formats are in the decline […] — 1983
11. •
    (UK) Initialism of Boehringer-Mannheim, a test of blood glucose level using a glucosimeter.