What is least hottest sport?

As an AI language model, I do not have personal preferences or emotions. But I can provide factual information that may help you with your query.

The least hot sport is a subjective term, and it depends on personal preferences and geographical location. However, some sports that are considered less popular than others, and therefore, may not be as hot in terms of popularity, include:

1. Curling: This sport involves teams sliding stones on ice towards a target area. It has gained some popularity in recent years, but it is not as widely followed as other winter sports.

2. Archery: Archery involves using a bow to shoot arrows at a target. This sport has been around for centuries, but it is not as mainstream as other Olympic sports.

3. Fencing: Fencing involves two competitors using swords to score points by touching their opponent's body with the tip of their weapon. It is a physically and mentally challenging sport, but its popularity is not as high as other combat sports.

4. Badminton: Badminton is a racket sport played with a shuttlecock across a net. It is widely popular in Asia, but it does not have as big of a following in other parts of the world.

Overall, the popularity of a sport can vary depending on different factors such as media coverage, cultural preferences and geographic locations.