Harpo Marx, n.Definitions

Harpo Marx (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the dumb face that thrusts everything into the abyss: his smile leaves us unsure whether it means the most extreme perversity or complete simplicity.