Lying mother

What do I do about a mom who's constantly lying to get me in trouble? And not little trouble, like grounded for two months trouble and its not stuff that happened through a miscommunication shes straight up lying. My mom isn't the authority figure in my house, my dad is, so she'll go screaming and crying to him and bug him to the point where he doesn't even care he'll just come home and tell us to pack our shit up because we're not getting it back for a few months.