A new feather on a bird in it's new-quill phase. If broken, the bird will likely bleed out and die.

Referenced in Highly Suspect's - "Bloodfeather", a person being your "bloodfeather" means that they're invaluable to you, and if something where to happen to them, it would be your pain and even your demise.
That girl's my bloodfeather, I couldn't think about life without her.
by Vinogradav November 29, 2019
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Bloodfeather: some one who hurt you/ will hurt you, yet you still refuse to hate.

-someone you love even though they have hurt you
Emm: so why are you still dating Kendall?
Garroth: well, she's fatal but I love who she is, she'll be my death or my forever, she's my little bloodfeather.
by El the Space Boy December 30, 2016
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