Post Break-Up Slag Phase - when someone has just been broken up with and decides to get with a lot of people, either out of desperation or just cos they can
1. when you have just dumped or been dumped, and you are feeling majorly low, and all you wanna do is sit around and cry and eat chocolates and strangle the teddy bear he gave you...
2. if you've just been parted from something you majorly love, and you're really down about it.