nut-case

n (sl 俚) mad or eccentric person 疯狂的或古怪的人.

numskull (also numbskull), nun, nuncio, nunnery, nuptial, nuptials, nurse, nursery, nursery nurse, nursery rhyme, nursery school, nursery slope, nursery stakes, nurseryman, nursing, nursing mother, nursing-home, nurture, nut, nut-brown, nut-house, nutcrackers, nutmeg, nutrient, nutriment, nutrition, nutritional, nutritionally, nutritionist, nutritious, nutritive, nuts, nutshell, nutter, nutty, nuzzle, NW, NY, NYC, nylon,