Though I'm fly I'm ill I'm running shit
3-points, field goal
Childish Gambino made 3 “points” in the previous line. Those being that he’s fly, ill, and running shit. In (American) football, you score 3 points by kicking a field goal.
“The kick is up, It’s Good!”
This may also be a subtle reference to his Community character Troy, who was a star quarterback in high school.
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