E|-----|
B|-----|
G|-7---|
D|-7---| <--it plays this over and over while joey goes
A|-5---| "cretin family cretin family..."
E|-----|

and then when he sings "everyones against me" and "oi oi oi oi"
it goes like this"

E|---------------|
B|---------------|
G|-10-10-9-9-8-7-
D|-10-10-9-9-8-7-
A|-8--8--7-7-6-5-|
E|---------------|
(the intro is the chorus without the words)

for the first part of the verse, play

E|-----| E|-----
B|-----| B|-----
G|-7---| G|-8---
D|-7---| a few times and then  D|-8--- the same number of times
A|-5---| A|-6---
E|-----| E|-----

for the second part play

E|-----| E|-----
B|-----| B|-----
G|-5---| G|-7---
D|-5---| a few times and then  D|-7---  the same number of times
A|-3---| A|-5---
E|-----| E|-----

and then at the end just play the verse part 1
while joey says "everyones against me, oi oi oi oi" 
over and over 
then end on

E|-----|
B|-5---|
G|-7---|
D|-7---|
A|-----|
E|-----|

i didnt say the number of strums or anything cause its pretty
easy to figure out when you listen to the song. You probably dont
even need a tab but here it is anyway.