"
far away from me.
[Chorus:]
Tell me where you're hiding your voodoo doll 'cause I can't control myself,
I don't wanna stay, wanna run away but I'm trapped under your spell.
And it hurts in my head and my heart
A voodoo doll is a doll that makes people fell pain when/where the voodoo doll feels it, so by asking where she is hiding her voodoo doll, 5SOS is saying that she is making him love her with a voodoo doll.