when a girl tries to act like your bbg but is a fake friend
Girl 1: did you hear what she said about you? she was talking shit bout u
Girl 2: ah look at her she's a fake bbg
a fight
just a typical british secondary school occurrence, usually at lunch time (characterised by kids gathering around shouting, kids running to see the fight, and teachers trying to stop the fight)
Person 1: "Did you hear? Apparently two year 7s were having a scrap in the playground today."
Person 2: "Typical year 7 shenanigans..."