So we gonna beef, and keep on beefing, unless
You're gonna agree, to meet with me in the flesh
And settle this face to face, and you're gonna see

from Eminem (Ft. DMX & Obie Trice) – Go to Sleep Lyrics on Rap Genius

Em is saying that there is always going to be a problem, unless Ja Rule comes to him face to face to settle the conflict.

A lot of wordplay here: meat (meet), flesh, beef

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