Sorry, I called you the wrong name, see, my brain's splitting
Dad isn't your name, see Faggot's a little more fitting

from Tyler The Creator (Ft. Syd tha Kyd) – Answer Lyrics on Rap Genius

Meaning

Tyler immediately regrets calling dad to his biological father because he left him right when he was born, and never came back, so he prefers to call him faggot.

My father died the day I came out of my mother’s hole

Also, another reference to his multiple personalities with the “brain splitting” line. Wolf would call him Dad, Sam would call him Faggot.

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