Ok, so here's how we sang it at summer camp.....

Nobody likes me
Everybody hates me
Guess I'll go eat worms
Big Fat Juicy Ones
Little bitty skinny ones
Golly how I love worms

Bite their heads off
Suck their guts out
Throw their skins away
Nobody knows how I can thrive
On worms three times a day

First ones easy
Second Ones squeezy
Third and fourth go down
Fifth gets stuck and
Sizth comes up
Golly how I love worms