It is tradition to create phrases with the word "grout" incorporated into them such as "The Groutain of Youth," "Grout Expectations," and "Grout of Site." The comments are often written in-between the wall tiles so as not to be erased by the custodial staff.
I'm not sure where it originated... I post it here because it's a second place in a different time, and it would be interesting to try to trace its origin.
Tony the tiger is grrrrrrrrout!