Wiktionary
bleed to death
vb. 1 (&lit bleed to death English) 2 (context intransitive English) To die from massive bloodloss, usually from severe arterial bleeding.
Usage examples of "bleed to death".
When I had him I opened him up, one vein at a time, and let him bleed to death.
If they didn't get it sewn up soon, the shaman would bleed to death anyway.