The act of falling backward into random people while walking on a crowded sidewalk or hallway, usually resulting in awkward reactions or the loss of one's "Gonia".
Also can be used to describe the awkwardness that would result from a marriage between Fawn, and Jeff Walling's son.
Boy 1: What the Heck?
Girl: Hehe I just Fawn-Walled you!
Boy 2: Wow way to go, you just Fawn-Walled his Gonia off!