I got my go, go, go, go, - go, go, go, go, gadget flow
“Go” refers to chicaGO. Inspector Gadget’s catchphrase is “Go go gadget”
Lupe is saying that his “flow” is his “gadget” or tool to portray his message (in this song, about how great Chicago is) to listeners.
Additionally, it could mean his flow could change into anything he wants, much like Inspector Gadget could use whatever gadget he wants.
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