She's a birthday candle
She's on fire, she's on cake, son son

from Das Racist – Coochie Dip City Lyrics on Rap Genius

Meaning

She’s on fire (as a birthday candle is) as in hot or liking the “dipping” (vague).
She’s on cake (as a birthday candle is) as in on cocaine.

To help improve the meaning of these lyrics, visit “Coochie Dip City” by Das Racist Lyrics and leave a comment on the lyrics box