Let's be honest, we have absolutely no idea what "Haoshoku Haki" is, let alone what "Haki" is. If we did, the whole world wouldn't be discussing it and Oda wouldn't still be dropping little tidbits on it. Think about it, why would Oda be veeeery slowly bringing this part of the One Piece world into the story if it was as simple as "Haki pretty much means ambition, so he just means ambition." And seriously Rin, what is with your fierce exaggerations and generalizations? Haki Blast??? Seriously? Does anyone even suggest anything remotely similar to this? I sure haven't seen it in this thread.
Zkaiser, I'm surprised to see you back down, honestly. You said Haki is connected to Tekkai, no? Well last time I checked we don't translate Tekkai. Whatever "Haki" is, we know it can be wielded like a weapon and controlled like a technique, right? Kinda like Karate (and Tekkai/Mantra) can be wielded like a weapon and controlled like a technique? I mean, taking it in context, it can. It can obviously be learned to some extent since every single Amazon can use it. It's emphasized with quotes, right? Hatchan referred to it as something he doesn't quite understand and something Rayleigh used, right? Mr. 2 had no idea what he did, right? Oda is still dropping little hints on it, right? If we know all of this how can we, beyond a shadow of a doubt, write it off as "just a word that roughly means ambition"? How can we translate it knowing it is being used in the same way someone would talk about Karate, Rokushiki, Santoryuu, Etc? Demon Rin wants us to believe that when they made that HUGE commotion in chapter 519, when Amazons freaked over this whole 1/1,000,000 talk, when Oda finally had Luffy use the same technique as Rayleigh and Shanks at full power (and in Level 5), and when Haki was finally given something more than just a vague
name word, that the entire purpose of the scene was for the Amazons to recognize that Luffy has the ambitions of a king. Literally. Nothing more, nothing less. What? Seriously? If that's the case why is Oda still alluding to it being some ultra secret new thing with scenes like Luffy talking out the wolves?
The question of this thread is, "is it a technique?" Well, all the evidence in the manga suggest that yes, it is. Demon Rin and Shmeckie started off by essentially saying no, it isn't. Now Rin seems to be doubling back a bit to say that it is something you can use to attack, but it isn't a technique and it isn't an attack. However that works. Then she makes up facts from her own view/opinion that whatever power your "ambition" gives you is directly related to your dream, even if that dream is (lol) to "live quietly". It seems like, if anything, the people who "NEED" something are Shmeckie and Rin, and that something is for "Haki" to not be a technique. You are have a hard time explaining it though without making it sound like a technique.
The Idea is that this thing, is that Luffy has "The Ambition of a King", (Haoshoku Haki) and his Ambition is to become "Pirate King".
And I'm sorry, but if it turns out that this was the entire purpose of that scene, I will facepalm until my nose is broken.