Someone who is unnaturally strong in his own right. Someone who acts or looks very cool.
Basically you can call "Klark" a person who can be looked upon.
Examples would be ones
like Batman or Superman. Although origin of this word is unknown, but it
may very well be a derivative from Superman's first name "Clark" Kent.
This word is rarely applicable to real
people and is often used to praise fictional characters in films or anime.
Anime examples are "WhiteBeard" from "One Piece", "Yamamoto Genryūsai" from bleach, "Sarutobi Hiruzen" from "
Naruto".