It is like roulette. It is when a lot of men cum inside one woman. When that woman gives birth whichever man matches the DNA test of the baby, that is their baby.
We were hammered drunk and we decided to play Unlucky Bastard. I hope it isn't mine!
by adog69 April 10, 2011
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A term describing Touma, a no-good guy with a neutering ability or a curse from God that nullifies all non-physical attacks on him.

He unaware that he built a harem with 9,000+ clones, a nun with the Vatican's most forbidden books, 2 Japanese Christian members, Rail Gun, and among others.
Somebody who's an "UnLUCKY Bastard!" shut that sadist boy.
by Kay Tutan Tayo December 28, 2018
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