bleed out

Short definition from Wiktionary

Noun

1. 1
   An instance of exsanguination or of major blood loss.
2. 2
   An instance of any system or item that loses its necessary components, such as a machine and its fuel or a company and its money.

Verb

1. 1
   To die due to excess bloodloss; to bleed to death.
2. 2
   To kill by causing such bloodloss.
3. 3
   To leak out; to spread.