LMAO, you tell him Lucy.
A landing page is the page that a link leads to, it is often the most popular page of a site and can be website 'Home Page' A landing page may be more keyword specific and it will concentrate on rerouting a user to the information they are looking for (easily) and providing small, short, sharp bites of attention grabbing information.
What Louie was saying was any page you choose can be a landing page, as in a diverse website could have many topics, so a link could lead to the landing page of Guerrilla Advertising (for example) or to Viral Marketing. Both pages are landing pages for their topic and lead to more information on the same site.
A landing page is like a headline in a newspaper, it wets your apatite, gets your attention and gives you the choice of what to read/view next.