bm
1. [ noun ] solid excretory product evacuated from the bowels
Synonyms: faecal_matter feces faeces stool ordure dejection fecal_matter
Related terms: body_waste droppings crap meconium dog_shit melena defecate
2. [ noun ] (biology) a euphemism for defecation
Synonyms: movement bowel_movement
Examples:

"he had a bowel movement"

Related terms: defecation