A play on the post office creed
“Neither snow nor rain nor heat nor gloom of night stays these couriers from the swift completion of their appointed rounds.”
Continuing with the post office metaphor
FLOWS (Raps) like rain fall
Talks SLICK (smooth) like sleet is in the street
and he will melt any other rapper who opposes him as quick as snow would melt in hell
His delivery in his raps are always ontime like the united state parcel service