Fun fact about this song and my hero Joe Strummer, from Songfacts.com -

Singer Joe Strummer told an interesting story to Musician magazine in 1988 about how he proved that popular 1980s group Tears for Fears stole a line from "Charlie Don't Surf" for the title of their hit "Everybody Wants To Rule The World." He was apparently in a restaurant and saw Roland Orzabal, lead songwriter for Tears for Fears, and told him that "you owe me a fiver," explaining that the name of their hit song was an exact lift of the first line of the middle eight in "Charlie Don't Surf." According to Strummer, Orzabal simply reached into his pocket and gave him a five pound note, effectively admitting that this had been the case.

(for the record it was from the first verse, not the middle eight as there is no middle eight in "Charlie Don't Surf")

fiver = five pound note. about enough for a beer and a pack of 'potato chips' in the pub these days