someone who eats shit hard and shows no effort to try and brace their fall with their hands and lands on their face there by executing the act of walking on their face, hence... a facewalker.
guy1: "yo man we were on the way back from the chow hall and chris facewalked so fuckin hard."

guy2: "yeah he always does shit like that... typical facewalker."
by sssssssssscottttttttttttt August 17, 2009
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When you become so shitfaced that you trip and fall on your face on an abrasive surface (asphalt, gravel, or grassy hills seem to work rather well) causing a scrape that will definitely leave a scab.
Bob: Dude, what happened to your face?

Dave: I facewalked after the party last night when i was walking down the hill.

Bob: Man, were you shitfaced!
by woody23 July 11, 2005
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