Adjective to describe an overgrown teenager, making stupid jokes but wearing funny t-shirts. Most of the time, the ingnioble guy is also metrosexual.
Maybe this word come from French but nobody really knows.
Look at Alexandro up there! There is a dog fucking a brain on his t-shirt! I don't know why he smirks so, but for sure he is just the exact type of an ingnioble guy.