Your opponent is as big as an ape so if you want to avoid being mangled
Just like him you've got to get into shape, and by shape I don't mean a triangle.
He's big, he's dumb, he's got the iq of gum
He's got a brain about the size of a sourdough crumb.
But he'll beat on your head like it's a big bass drum
His behavior is truly unruly
He's a bully! (x2)
Lyrics taken from http://www.lyricsmode.com/lyrics/p/phineas_and_ferb/hes_a_bully.html