I'm half Hawaiian & I really don't know, so shame yeah? But from what I can gather I think it means "Unforgetable" There's plenty of mainlanders here who have studied olelo, so one of them will surely chime in shortly to verify
Mai poina ʻole is do not forget. Mai poina ʻoe iaʻu. (I think that is what you meant) is do not forget me. just like we nevah forget each other John. BTW i have a BA in da kine. But I am not an expert by any means. But I can help on most of the simple stuffs :-).