Saw it all before, some of y'all thought I was crazy, maybe
Like a fox, I'm cagey, ah-ah

from Jay Z – "Grammy Family" Freestyle Lyrics on Rap Genius

Meaning

A “before-and-after” style phrase: it can be read as both “Some of y'all thought I was crazy — maybe; like a fox!" (i.e. not crazy at all, but cunning)

or as “Some of y'all thought I was crazy. Maybe, like a fox, I’m cagey” (a pun — both literally “in a cage” and also “crafty or shrewd”)

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