You stare at them for several more moments, quietly shocked at the audacity of their song. You've heard many girls teasing you about your fate over the years, in various ways. But this is the first time you've ever heard it sung like this. Particularly as a jump rope song!
After staring at them for a few moment more, you realize that all the girls have sat up and are quite eagerly staring at you. They are all wearing very wide, excited, delighted little smiles on their faces. Swallowing just a little, you put a broad smile on your face, as you decide it might be best to be almost completely honest with them about how their song made you feel. In truth, it actually kind of excited you to have these pretty young girls thinking of you this way. But you obviously couldn't tell them that!
"Well girls, that was a very very nice song! You worked very hard on it, I can tell. It, was very nice to get to hear you sing that to me like that. Any guy would be extremely lucky to get to be eaten by one of you girls, and t turn into, well, into your poop! And then to have you waving goodbye to him as you flush him away, before you run off to play again!" He shivered, fully aware that any guy these girls would eat, truly would just be poop to them at the end, and they wouldn't care in the least for his life or death.

Standing fully upright again, you keep smiling at them, hoping that praising these girls was the right thing for you to do in this situation.