the brown smudge left by faecal matter in various places, such as a chodbin, your pants, or a womans cleavage.
"OH CHRIST! Malcolms done a reverse dogan and left a brown runway all the way down!"
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When you receive a sudden fright, you could say that you almost "Browned the runway"
"I was on my way to work and some dope in a semi almost ran me over.  I thought I was going to brown the runway"
by @WeMoveTheMasses May 11, 2012
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rewinding an on-demand or DVR-r'd program, to watch it again, because you weren't paying attention the first time.
I'm watching Entourage, and Brad was smoking pot and laughing about something stupid when Turtle told Tom Brady to suck balls. Brad decided to 'brown the runway' and re-winded Entourage and I had to watch it again because he's an idiot.
by scotthew1 August 20, 2009
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