I learned this in 2nd grade in Karachi, Pakistan in 1960 -

great green globs of greasy grimy gopher guts
mutilated monkey meat
dirty little birdie's feet
one-half pound of all-purpose-porpoise pus
floating in the pink lemonade

The other song that springs to mind in this vein is the good old" "Did you ever see a black car go by" Ah, those were the days! HB