The phrase "skull crusher" comes to mind, however thinking back on it I'm sure I've seen other pics were Yuuka is at least clutching someone by the head.
You know, I just noticed her S gage ISN'T maxed out. What would happen if it was?
Garden of the SunYuukaDidn't I tell you to never come here again...? This head of yours just won't understand no matter how many times I tell you, huh. Maybe I should just crush it, like this?