Biting the dust
It'll just make me angrier,
Biting the dust, as in falling down and eating dirt. He is saying knocking him down will only make him angrier giving him a reason to get up and fight again.
Bite the dust can also mean:
Which refers to both his hiatus in the rap industry when many people thought he was no longer a part of a game, as well as his literal close encounter with death after a relapse, which he recovered from to drop more anger-fueled songs.
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