Twelve years ago, Cosmo Kramer and Frank Costanza debated the relative merits of the terms "bro" and "manssiere" for a new male chest-support garment. While neither word wins out in that Seinfeld episode, these days manssiere would crush its competition. That's because "man" has become the in prefix for the hip crowd.

In The 40-Year Old Virgin, Paul Rudd manages to squeeze in the terms "mantastic" and "man o' lantern" into one unforgettable waxing scene. In this AOL clip, Jon Favreau claims that Vince Vaughn invented the term "mancation" for his post-Jennifer Aniston recovery in the movie The Break-Up. The term, which appears to be the new way to describe all-male vacations, has gone on to garner mentions in the Associated Press and USA Today. It has gone so far as to earn the wrath of the February issue of Maxim, which in a separate section describes the "mandal," which seems to be any sort of Birkenstock-type footwear worn with socks, as the lamest thing in the world.

Looking for more evidence that "man" is taking over our lexicon? Check out the newest McDonald's ad, which for some reason features a grown-up version of Ben Seaver of Growing Pains and describes a girl's group of guy friends as her "mantourage." Or simply take a stroll down the incredibly long "m" section of urbandictionary.com, where you'll learn definitions of everything from manstruation through manopause.

How mannoying.