You see Spongebob,
It’s a metaphor. You put the killing thing right between your teeth, but never give it the power to kill you.
imagine a muggleborn in hogwarts starts singing Bohemian Rhapsody under their breath and then another muggleborn notices and starts singing along
and then suddenly all the muggleborns in the area are belting out the lyrics and head banging and every single pureblood is left utterly confused
IT’S BEEN TWO DAYS