Walk someone down
Walk You Down
Walk you down means to catch up to someone that is in front of oneself in some sense. Relevant contexts include physically running, the amount of money or fame one has, et cetera. In a track by Young Jeezy, he refers to Allan Rossum, fastest man in the NFL (as of 2004), who won the fastest man competition during the Pro Bowl in 2004. Walk you down is comparable in meaning to catch up to you.
"Jeezy will walk you down like Rossum" -- Young Jeezy (Atlanta)"