noun
fan of a single member; solo stan
Idol-fandom slang for supporting only one member of a group, as opposed to 箱推し (supporting the whole group).
See also: 箱推し
私はあのグループの単推しで、他のメンバーにはあまり興味がない。
I'm a solo stan of that group and not very interested in the other members.
単推しと箱推し、どっちがいいとかじゃなくて、楽しみ方の違いだよね。
It's not about which is better, being a solo stan or a group stan; it's just a different way of enjoying it.