When you don't have a crush on someone but, you want to know what it's like to kiss them.
Girl 1: You definitely like him!
Girl 2: No I don't! It's just a kiss crush!
When someone who considers themselves to not have "style" sees something and decides, that even if they did have style, that would not be it.
Friend 1: I could totally see you wearing that!
Friend 2: No way. That is definitely my not style.
Instead of being with a different girl/boy all the time, they have a crush on a different girl/boy all the time.
Person 1: That girl is such a hoe.
Person 2: No she's not. She never dates anyone so she's not a hoe.
Person 1: But she has a crush on someone new like every week.
Person 2: That just makes her a crush hoe not an actual hoe.