A euphemism used to describe the obnoxiously fast way that a friend higher than Al Pacino on stimulants (usually amphetamine or methamphetamine) is walking ahead of you; legs fast arms slow, only a walk by definition, and at this point you have to mildly jog to keep up.
Lit. "SPIN THE BUB DUDEEEE!!!!!!!
*Tweaker friend meets up, obviously tweaking, while you proceed to keep up to him from slots to blackjack *
You: "Broman you been doin the 100 meter dash? Cause you still doin it just fyi."
*both laugh*