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.
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.
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!