I dunn seen the realest niggas froze up
When that Mac squeezing hollows leave your back, leaking that

from Meek Mill – Y'all Don't Hear Me Freestyle Lyrics on Rap Genius

Meaning

Hollow point bullets explode on contact, making getting shot in the back extra painful. Seeing the Mac-11 in your face is bound to make anyone freeze up.

Meek loves his Mac-11, he commonly makes references to it:

But I got this mac elevy, these niggas’ll never get me

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