You can't carry this, them Cannon Nickelodeon boy
Referring to actor/rapper Nick Cannon, who as a childstar appeared on Nickelodeon and went on to become an executive at the network.
Essentially, Tyler’s saying you couldn’t handle the weight/pressure of handling the “gun cannon” he uses.
Tyler is also referring to Nick Cannon’s wife Mariah Carrey with the wordplay of carry and Carrey.
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