Frontal Lobes is an increasingly rare, although typically used phrase to describe irregular bumps or extrudes from ones forehead. Although the exact origin is unknown, the form of the word has evolved from the amusing, however overused colloquialism 'Tithead'. The general use of the phrase 'Frontal Lobes' is nearly always used in insult, and often by those of a higher intellect then people who attatch the suffix '-head' to almost any word, avoiding all relevance and often grammar. An example might be 'arseholehead' which shows the pathetic grammar and lexis of today's youth. Yo, init, g-unit, shizzle, handle ma gat. No, we can't understand it either.