The one I know is nearer to Vectis' version

Nobody loves me
Everybody hates me
Think I'll go and eat worms
Big fat juicy ones
Wee skinny scrimpy ones
See how they squiggle and squirm

Well you bite off the heads
And you schluuurp out the juice
And you throw the skins away
Nobody knows how I survive
On a hundred worms a day