I googled Crocadilly because I was trying to remember this rhyme from the early 1990's in Austin, Texas and found this thread.

I can't believe how many different variations there are! Mine is the same as the other three posters from Austin, although mine is from Travis Heights Elementary and then Pease Elementary:

Crocadilly oomp bop
croc croc croc.
Dance to the chigger
chigger chigger rock.
Fallow, fallow, fallow, fallow, fallow, Fal-LOW
Hopscotch chigger mush!