The lyric "I know you wanna bite this/ It's so enticing/ Nothing else like this, I'ma make you my bitch/ And it's not even my birthday/ But you wanna put your name on it" is a metaphor referring to a vagina.
So beziehen sich die Zeilen I know you wanna bite this/ It’s so enticing/ Nothing else like this, I’ma make you my bitch/ And it’s not even my birthday/ But you wanna put your name on it zum Beispiel auf eine Vagina.