Thundu

Thundu refers to a specific type of hand gesture originating from South India, particularly popular in Kerala. It is a somewhat crude and often offensive gesture, typically used to express dismissal, defiance, or contempt. The gesture involves extending the middle finger of one hand, often accompanied by a flicking motion of the wrist.

The origin of the term "thundu" is debated, but it is widely understood as a vernacular term for this specific obscene gesture. Its usage is context-dependent and can range from a playful insult among friends to a serious expression of anger or disrespect. While not a formal or polite form of communication, it has become ingrained in certain cultural expressions and can appear in informal settings or within popular culture, such as films and comedy sketches.

The gesture is generally considered vulgar and is not appropriate in formal or polite company. Its meaning is universally understood as offensive within the cultural contexts where it is used.