I believe the lines in question go:
"And as we knock gloves" (X4)
-- Boxers knock their gloves together before a match instead of shaking hands as a show of sportsmanship
"His don't even move just a little"
-- His opponent so much bigger and stronger that knocking gloves is like hitting a rock!
"Lightning! Woah!"
-- The realization of how badly he is about to get beaten hits him like a bolt of lightning, causing him to turn pale with fright... thus leading to...
"That's when he turned to me and said, and I quote "BOY! Use a little less whitening!"
-- His opponent (or the ref?) sees how pale his skin's gotten from fear and makes a snide joke about it.
I believe the lines in question go: "And as we knock gloves" (X4) -- Boxers knock their gloves together before a match instead of shaking hands as a show of sportsmanship "His don't even move just a little" -- His opponent so much bigger and stronger that knocking gloves is like hitting a rock! "Lightning! Woah!" -- The realization of how badly he is about to get beaten hits him like a bolt of lightning, causing him to turn pale with fright... thus leading to... "That's when he turned to me and said, and I quote "BOY! Use a little less whitening!" -- His opponent (or the ref?) sees how pale his skin's gotten from fear and makes a snide joke about it.