A nasty laugh is a type of laughter that conveys contempt or disdain. It can be expressed in various ways, such as sneering (5 letters), hah (3 letters), and heh (3 letters). Sneering is a facial expression that involves curling one's lip to show scorn or derision. Hah and heh are interjections that are often used to express amusement, surprise, or disbelief. All three of these expressions can be used to convey a nasty laugh.