So I'mma ball harder than the ma'fucking Carter's
Beyoncé and Shawn, arm blue'er than their daughter

from Meek Mill – Lil Nigga Snupe Lyrics on Rap Genius

Meaning

The Carters, Jay-Z and Beyoncé, especially Jay-Z, are known to spend huge sums of money on extravagant things, (e.g. $1 million nursery suite, $80,000 diamond-encrusted Barbie doll etc).

Meek plays on Blue Ivy’s name describing how much diamonds there’s in his watch.

Rollie face blue, like I’m crippin on ‘em

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