Deletion of it in non-referential it is-constructions
When you pass, is moonshine night and you pass clear over.
When you pass, it'll be a moonlit night, and you'll pass right over [it].
The crawfish is light. Now, when time to take it - up in the boat, i's heavy.
The crawfish is light. But when it's time to take it up into the boat, it's heavy.