The 1975 - You Lyrics Meaning

You is about how Mattys gurlfriend kissed all his friends and when he figures out, he one ups her and plows everyone in the town tobget bavk at her. Hence, 'it takes a bit more than you'.

When he says 'and your a liar' he means that she's been cheating on him, and 'at least all of your friends are' means that he plowed all her friends and they haven't spoken to her about it.

'It's my party and I'll cry to the end' means that he can do whatever he wants no matter if he's happy or not