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A Fijian word; the literal translation of "Yo Momma's Pussy" and is one of, if not THE most common word used by Fijians all over the world. Intended as a pun toward your mother's vagina.
Mike: Go away, Magaichinamu !

Jake: Magaichinamu !! FUCK OFF !
by KaivitiBoy679 January 06, 2014
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