bleeder

noun7

1. •
   A person who is easily made to bleed, or who bleeds in unusually large amounts, particularly a hemophiliac.
2. •
   (slang, disapproving) A troublesome fellow or thing; a blighter.

   • His brother caught three hundred cran when the seas were lavish, / Threw the bleeders back in the sea and went upon the parish. — 1938
3. •
   A valve designed to release a small amount of excess pressure from a system.
4. •
   A blood vessel that requires cauterization etc. to stop it from bleeding during surgery.

   • Ligate or cauterize small subcutaneous bleeders and identify the linea alba. — 2013
5. •
   Anything that saps a resource produced by something else.
6. •
   A person who menstruates (used in the context of transgender inclusivity).

   • Vostral (2008) sees menstrual technology as focused on allowing women to “pass” as non-bleeders, speaking to the sense of the female body as dysfunctional, problematic, and “out of control.” — 2014
7. •
   Synonym of scratch hit.