Just Don't Give A Fuck The Slim Shady LP Eminem

I'm on a search to crush a milk bone

because crushing a dog biscuit to snort it might not quite produce the high some drug users are used to, this may instead be a metaphor for selling more records than rapper Milkbone, an individual who somewhat resembles Eminem
hes dissing white rappers. the entire lyric is: "im nicer than pete(pete nice), but im on a search(mc serch) to crush a milkbone(miilkkbone)/ im everlasting(everlast), i melt vanilla ice like silicone".
eminem is gonna snort a milk bone (he is broke)