Phonetically, in french, 'Bush true?' (Bouche-trou) means makeshift/gap filler...
Just uneducated fun
Pleasure in nothingness
Story behind the song
Just fed up with conservative politicians who, in the name of keeping old ways, make a bigger mess of our world than it already was...
Lyrics
Bush true? Bush true? Bush true?... Wrong!
Where's my bible? Where's my oil? (twice)
In Irak! In Irak! In Irak!
Etc...