Well this is a joke song written by NSG, its fairly simple.

Intro, Verse & Post Chorus(Bah bah bah Badman part) Chords (Find out the strumming by 
to the song)

    G  D  C  D
e|--3--2--0--2--|
B|--3--3--1--3--|
G|--0--2--0--2--|
D|--0--0--2--0--|
A|--2-----3-----|
E|--3-----------|

Chorus Chords (Got my 9 mili that goes brap brap brap brap...)
    C  D  C  D
e|--0--2--0--2--|
B|--1--3--1--3--|
G|--0--2--0--2--|
D|--2--0--2--0--|
A|--3-----3-----|
E|--------------|

Song Order
Intro x2
Bah bah Badman x2
Verse x2
Chorus x2
Bah bah Badman x2
Verse x2
Chorus x2
Bah bah Badman x4

And thats basically it, it's not hard figuring out the strumming so have fun!