The act of declaring that one is good at something right before fucking it up.
Derives from Star Wars Episode III: Revenge of the Sith where Anakin Skywalker says this to his former master Obi-Wan Kenobi right before lunging at him and getting his left arm and both of his legs cut of by a lightsaber.
Obi-Wan: "It's over Anakin, I have the high ground"
Anakin: You underestimate my power!"
Also Anakin: (Lunges at him and gets fucked by his laser sword and then caught on fire)
A character who agrees as much as possible to become as close as they can to their love interest. They do pretty much whatever their love wants. This always leaves them open for manipulation due to not thinking about the consequences, always saying "un, un, un!" (yes, yes, yes!)