The most mysterious issue of Google

One of the Beerby developers (a program for beer lovers) drew attention to a strange fact : the site receives an unusually large amount of search traffic on request [ cake central ]. He checked and was horrified: the absolutely left page ranks first in Google search results, ahead of cakecentral.com and so on, despite the fact that CAKE or CENTRAL are never mentioned on this page.

Question to optimizers: how is this possible and how can this glitch be reproduced on another request?