OK dunno if this is anything to do with cassette boy but its got what appears to be a bunch of stoned chavs singing (fairly well) about spliff and beer…

Anyway the chorus starts off as

“All I need is a bag of weed and a can of beer”

which is repeated in harmony until inevitably one of them sings

“All I need is a can of weed and a bag of beer”

At which they all collapse into fits of laughter. This description doesn’t do it justice TBH but if you know the tune you will understand what I mean (it makes me laugh even when stone cold sober because of the way it happens).