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1.
Exactly what it says. A balloon filled with blood.
Or, another word for blister, etc.
Little Jimmothy "MOM, I need a band-aid! I fell off my bike and now there's a blood balloon on my knee!"

Frequently asked questions:

"Are babies blood balloons?"

"Should i start stabbing babies with pins?"

The answer?
Yes.
by Apu Pibut June 30, 2011