was this intentional

At the beginning when Vada makes four boys from her class pay to see a dead body she tells them a whole bunch of crap about how sometimes when they arrive they are not completely dead and walk around the house or something like chickend do when you cut their head off. One of the boys says you are full of it and right before he can say "it", Vada says "sh" so it sounds like the boy is saying you're full of sh!t. Was this intentional from the writers or did it just come out that way. I know that when they put it on television stations where they filter bad language they filter this part out. So was it the script supposed to be like that or did they not realise that it turned out like this.

Fun Fun Fun

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