Na-adjective (keiyodoshi), Noun which may take the genitive case particle 'no'
completely empty
うるさいなっ！少しの頭痛くらい我慢しろ。余は魔力がすっからかんだ。それもこれも姫のせいだぞ。Shurrup! Don't make such a fuss over a little headache. I'm flat out of magical power - this is all your fault! penniless; flat broke
Also written スッカラカン