In Dull Knives, the Queen is losing control and seriously considering suicide. In the previous song, Sinister Smiles, she’s already said “. . . grab the dagger. Cut through skin and stain the water”. This is a very “feminine” way to commit suicide-- in the tub, maybe a bubble bath, so that the blood from slashed wrists remains in the tub and does not dirty the house. I assume dull knives cut “better” because they cause more pain, and at this point she is self-mutilating. She realizes that her evil side is winning. She is losing it.
In Dull Knives, the Queen is losing control and seriously considering suicide. In the previous song, Sinister Smiles, she’s already said “. . . grab the dagger. Cut through skin and stain the water”. This is a very “feminine” way to commit suicide-- in the tub, maybe a bubble bath, so that the blood from slashed wrists remains in the tub and does not dirty the house. I assume dull knives cut “better” because they cause more pain, and at this point she is self-mutilating. She realizes that her evil side is winning. She is losing it.