Little Mix - Hair Lyrics Meaning

'Hair' is about someone who dated someone and they did something bad behind their back like if they cheated or caught kissing another person, and they broke up and they just can't seem to get over their ex.... But the other little mix members are saying 'Leigh-Anne you need to get over Sean Paul because he's not good enough for you just get him out of your hair' also the line 'cause he was just a d*ck and I knew it' cracks me up every time and it's true some Ex's are d*cks...