any pedestrian that gets in the way of a bike messenger/courier or cyclist; whether pedestrian is crossing the street, on the sidewalk or on a hiker/biker trail.
"Dude that flesh pylon crossed the streetwithout looking both ways so I had to nail him."
"I hit this flesh pylon on the sidewalk cuz I was scoping out this hottie on a bike."
Buffing someones pylon: purposely taking credit for someone elses work, something they did or made. Not buffing someones pylon: mentioning something someone else did and saying that they made it (Note: this has nothing to do with the word pylon)
Person1: Yeah see that over thereI made it.
Person2: Dude your awesome at this.
Person3: Don't buff my pylon you asshat