Ricochet is the rebound that happens when you fire a gun at an object that deflects the bullet. In other words, fire all you want at Sia because anything negative will just be deflected.
Lyrically, Sia’s referring to the criticism and negativity that’s directed at her – the bullets – but she won’t be affected at all. She’s strong and immune to it like titanium is to bullets.
Hope this helps.
Metaphor
This sentence is an example of a metaphor, the speaker is comparing his father to being death in the way that death typically is said to come after a person. Through this image, it's clear that the speaker's father is not going to give up pursuit of him.
I cant see the picture sorry
