The state of mind or being in which a person has titanium-clad convictions, will stop at nothing to accomplish their goals, and absolutely lets nothing get in their way of progress. They may also have a strong urge to protect anyone and everyone they can. Someone who is considered Full Metal can also be classified as a badass and admirable person. However, they may display a hot headed nature over some very trivial things, usually over things they may be sensitive about.
He was a very shy and reserved kid growing up, but as he matured he became Full Metal, and now everyone he knows respects him.
by Kishiro July 22, 2010
The state of a noun when it has reached maturity or an advanced level of development.

Pat: Dude, I remember when used to be so tiny, now she's graduating.

Gray: Yeah man, when you met her she was a freshman, now she's full metal.
by Asparagustus March 22, 2009
A Japanese cartoon about militaristic teenagers, terrorists, high school, and giant robots.
I watched Full Metal Panic last night.
by Otaku X December 27, 2005
Gargantuan thicket of madness, bigger than earth and denser than gold truly a magical bush to behold
by stonerrrrstonerrr November 6, 2014
Sousuke Sagara, a 17 year old military specialist working for the secret organization MITHRIL, has been assigned to protect the latest "Whispered" candidate Kaname Chidori. To complete this task Sousuke will have to deal with enemies from his past as well as the occasional panty thief. Unfortunately for Sousuke, the toughest part of his mission isn't only protecting Miss Chidori, but also getting used to living an average High School students life, no easy task for someone raised on the battlefield.
Full Metal Panic is a great anime.
by ♫ Highway to Hell ♫ September 25, 2010
A japanese manga/anime. Edward and Alphonse both lost something important to them. Edward, being the bigger brother, lost his leg while performing a human transmutation for his dead mother, due to this failure, Alphonse, his little brother, lost his whole body. With Edward's last strength he gave up his arm and was able to cast his brother's soul into a suit of armor. After finding out that a human transmutation is "impossible," they've journeyed to find the Philospoher Stone. The philsopher stone is a rumor that has made every alchemist in the 16-17 century worked up on finding this stone. It is because it can, make you wealthier, longevity, bring the dead back, turn lead into gold, brings anything you desire. However, on their journey, they meet chimeras and homunculus.....
You cannot gain something without losing something. You have to present something with the equal value to gain the thing you desire. This is the code of equivalent trade in alchemy- An Actual Alchemy Code
by Chiichiko May 16, 2004