He's chanting "Over hill, over dale, we will hit the silver trail.. as those rovers.. keep roving, along... double march and about, you can hear the people shout, those Rovers keep rolling along...it's high hi hee, we're walking artilery, protecting paths all day long...like a dumbass, I got smashed, fell off the silver path... and now I'm making up this bullshit..song" Grunt