一いっ体たい性せいMeaningsNoun1. oneness; unity; integrity; inclusionKanji used一one体body性nature (of a person)Composed of一いっ体たい(what) the heck; (why) in the world; (who) on earth; (where) the hell; (how) the hell; one object; one body; one unit; one group; one mass; …Adverb性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun