1. blood nut
An Australian term for a red-headed pale person. Possibly in-bred.
the more red headed, pale, freckled, etc. a person is, the more of a blood nut they are.
"No wonder he wen't postal, he's a bloodnut."
2. bloodnut
Prince Harry and his red cheeks
"Look at Bloodnut with his red cheeks smoking a cone".
3. Bloodnut
A rare condition when a man's testicles are filled with blood, rather than semen. Many think this mishap is due to being repeatedly kicked in the testicles at a young age, but it is actually a hereditary desease.
Catie: Hey Riley, how did last night go with Sean?
Riley: Not so well, I got the bloodnut again.
Catie: Sucks to be you.
Sean: Who's next?