The version I know goes:

Nobody likes me,
Everybody hates me,
Just because I eat worms,
Big fat hairy ones,
Short skinny slimy ones,
See how the little ones squirm.

Bite all their heads off,
Suck all the juice out,
Throw the empty skins away,
Nobody likes me,
Everybody hates me,
'Cos I eat worms all day.