The Colossus Burger was a burger menu item introduced at Jack in the Box restaurants in 1994. It consisted of two 1/4lb patties, three slices of cheese (of different kinds), and eight pieces of bacon.
A commercial was made advertising the Colossus Burger. A small town (possibly Jack Box's own home town) is invaded by a giant, known as "The Incredibly Hungry Man". Dissatisfied with the taste of trees, or anything of the liking, the giant then comes across a Jack in the Box, and orders the Colossus Burger, at which point we are shown. The commercial ends with the giant walking off, having quelled his hunger at last.