Tougher than Nigerian hair
Nigerians (and Africans generally) are thought to have particularly tough hair.
Lil Wayne is tough because of all that he had gone through in his (then) short life. His father abandoned his family when he was two years old and was raised in poverty by a single mother. He had his first child when he was only fifteen years old. Even though the odds were stacked against Weezy, he become successful.
To help improve the meaning of these lyrics, visit "A Milli" by Lil Wayne Lyrics and leave a comment on the lyrics box