"Warmmer" places added emmphasis on the warmmth and awesommeness of an object by doubling the letter m. Doubling of the letter m in any word injects it with a secret "mm" as in "mm mm mm good". Something that makes you warmmer, thus, not only increases your heat but gives you that extra special kind of heat...the kind that makes you go "mmmmmmm"

When you eat dirt for the first time and leave your family to build a shack in the woods