Top Definition
1. Bizarre Internet phenomenon of the man who can be seen in any photograph.

2. Public Relations stint gone wrong

3. The man who is always there and yet never there.
The second gunman on the grassy knoll is actually Wall Guy.
by yosarrian August 09, 2005

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×