I Don't Understand tab by Jon Lajoie

This tab is in standard tuning. You should be able to get the strumming or just make
own variation, so it isn't tabbed. I suppose if you tuned it down half a step, which is how
suspect it is played, you could just play it with D/Bm chords. Regardless, enjoy! Not
much of a difference. :)

Intro chord.
e|---------------------------------------------------------------------|
B|-8-------------------------------------------------------------------|
G|-8-------------------------------------------------------------------|
D|-8-------------------------------------------------------------------|
A|-6-------------------------------------------------------------------|
E|---------------------------------------------------------------------|

I don't understand...  can somebody tell me what's going on?
e|---------------------------------------------------------------------|
B|-4---------------8----------------4---------------------8------------|
G|-5---------------8----------------5---------------------8------------|
D|-5---------------8----------------5---------------------8------------|
A|-3---------------6----------------3---------------------6------------|
E|---------------------------------------------------------------------|

Why is there a drunk Chinese man doing push-ups on my front lawn?
e|---------------------------4---------6-------------------------------|
B|-------------4-------------4---------6--------------------8----------|
G|-------------5-------------5---------7--------------------8----------|
D|-------------5-------------6---------8--------------------8----------|
A|-------------3-------------6---------8--------------------6----------|
E|---------------------------4---------6-------------------------------|

...and why's he wearing lip-stick?
e|----------------------6----------------------------------------------|
B|----------------------6----------------------------------------------|
G|----------------------7----------------------------------------------|
D|----------------------8----------------------------------------------|
A|----------------------8----------------------------------------------|