And anytime beef is on or the heat is on
I'm on some Nelly shit in New Jerz, getting my Eagle on
from Joe Budden – Bullshit Rappers & Metaphors Lyrics on Rap Genius
Meaning
Anytime there is conflict in his native Jersey City, NJ, Budden will be there using his Desert Eagle pistol. The line is also a reference to the Nelly song “Get Your Eagle On”, in which the “eagle” in question is a dance:

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