TNT Man are hostile mobs that have the same appearance as the Player. They will throw TNT at the Player or explode if near the Player. They are 10x more powerful than a creeper.
It looks like Steve except it is made of TNT and it's head is the shape of a "t". It is very common to see bats hanging on him.
It lives in mines, caves, and canyons. It is passive, but if provoked, it will throw lighted TNT, and some have bow and arrows that explode upon contact. It drops 1-3 TNT, 0-1 flint & steel, or even another lighted TNT.
You take 5 blocks of TNT and form them in the shape of a "t" very similar to an iron golem's build configuration.