What is a "Montoge"

So, my brother (you know the one who has a Masters and Phd in English) Asked me the other day what a "Montoge" was. Needless to say I was sad to know that all the money and time was going to waste on his education. All those years of study, and he needed his "uneducated" older brother to spell things out. Of course, I jumped at the chance. I explained the meaning of montoge and how it was based on a french word. My dear brother Micah, then proceded to tell me that he knows what MontAge means, he just did not know what MontOge means.... I had spelled it wrong.. So, not to be caught with my hand in the cookie jar and admit defeat. In true Mattix fasion I recovered quickly. I explained that my spelling was part of my "French Boycott" in which I try to avoid french spelling and french fries (except on days that end in Y) and french wines (unless they are a red or a white). Micah, sensing my attempt at a quick recovery, responded graciously and gave me .33 points. So now, the score stands Micah 2, Dean 1.33. I dont plan on being behind for long...