According to SongFacts.com, the song is about Megan’s father who left her when she was a little kid & returned when she was older.
Apparently, there was some sort of situation where her dad was physically abusing her mom & the police were called.
When Megan ran out of the house, she scream...
[Verse 1:]
Hey Father
I want to put you to an end
Hey Father
I'm almost over it again
Hey Father
You were never my friend
Hey Father
I've lost my mind again
[Chorus:]
Officer
What will you do?
Officer
I'll pay you
I'll pay you to shoot him now
I will you pay you to take him out
I will pay you to shoot him now
I'll pay you to blow his brains out
[Verse 2:]
Hey Mother
Did he hurt you again?
Hey Mother
I want you in
It's got to end
Hey Mother
Swallow your pride
You know it's true
Hey Mother
You know he hurt me too
[Repeat Chorus:]
[Bridge:]
(My sanity's lost now)
To choke him now
(The sad times are over)
To fuck him up
(I've taken control now)
To make him drink
From the same dried cup
Hey Father
I wanna put you to an end
Hey Father
[Repeat Chorus:]
Megan McCauley released I’ll Pay You To Shoot Him on Tue Sep 11 2007.