(adj) a classy version of the word "baller" or "awesome." It can be used in common speech or at high class cocktail parties. It is derived from the French word "ballant," meaning "loose" or "dangling."
Wow, that's a ballantic sweater vest you have over there.
Abe Lincoln's top hat was quite ballantic.
Jay-Z presents himself in a very ballantic fashion.
This caviar is ballantic!