Did, didn't I can't feel nothin', superhuman
Even when I'm fuckin' Viagra poppin',

from Frank Ocean – Novacane Lyrics on Rap Genius

Meaning

Frank is left emotionally numb (hence the Novocaine) after his experience with his porn star/aspiring dentist. He’s not attracted to anyone else so even Viagra can’t help.

By saying “superhuman,” Frank is invincible and invulnerable, but this is also another way of saying that he feels nothing.

The lyric’s “did, didn’t” are more in line with the previous lyrics. Elements of what he got from what he started (previous line) are things he both did and didn’t desire. This juxtaposition emphasizes the irony in saying that even though he’s “superhuman” (a seemingly good quality) he is also invincible to feeling emotion.

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