When a girl makes very noticeable changes to her appearance (ex. dying or cutting
her hair, wearing particularly sexy clothes
) before meeting up with her ex-boyfriend
- who is usually the one
who left her - a short period of time after the break up
to "grab a coffee" or "get her stuff back". This is supposed to have the effect of a shock for the guy, who feels like he's already
missed out on a lot and like she's doing great and moving on without him. The goal is to make him ultimately regret his decision.