The term "hardcore fans" refers to individuals who are extremely passionate and dedicated towards a particular person, place or thing. These people have an intense love for something that they will go above and beyond to support it. They may be loyal customers of a brand, die-hard supporters of a sports team, or enthusiasts of a specific genre of music or entertainment. Hardcore fans are often willing to spend significant amounts of time and money in order to show their devotion to what they love.