2 definitions by jacaya

Top Definition
A ninja who has a twin, who also happens to be a ninja. It is a portmanteau of "twin ninjas".
Kyo and Kai are the most deadly twinjas anyone has ever encountered.
by jacaya August 22, 2010
A surgical procedure in which an infant is removed from the mother's womb by cutting through her breasts. It is a very rare occurance... 1 out of 7 billion+.
Swani is the first and only baby to be born by a breastasarian procedure.
by jacaya March 13, 2010

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