But before you pick a pepper
You better pick up your heater
Cause even Peter Piper could pick up a mic
But what it's like to pick a fight with me
Is like putting Nikes on a cheetah

from Eminem (Ft. Slaughterhouse & Yelawolf) – BET Shady 2.0 Cypher Lyrics on Rap Genius

Yelawolf is playing on the Peter Piper nursery rhyme and saying the before you choose to come at him, you better come strapped (lyrically), because challenging him is like putting Nike’s on a cheetah, theoretically, as in they are already on the cheetah, then trying to race the cheetah, because Nike makes elite running shoes, therefore making the cheetah even faster. These lines are a culmination of the food- and animal-related imagery that runs throughout the second half of this verse (alphabet soup, potato, meatheads, cow, pepper, etc.)

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