A weeaboo who believes they are a credible threat.
Usually they are more talk than action, but they are known to randomly strike out to prove themselves. Rarely would a dangerboo manage to overcome an opponent who has
basic skill.
A dangerboo is often heard to say that they are skilled in martial arts, that they have "studied the
blade" (always a katana), and that actually a
weapon is a handicap because of how deadly they are with their bare hands.
The man on the train who stopped a
fight with his katana revealed himself to be a total dangerboo when he told the
news that "he had already come up with a plan to take out everyone on that train".