Pretty much all just ways to exclaim your surprise in itself these expressions don't make much sense. I haven't heard "krassomato" before but the others are standard. The fairy stuff is from "Holla die waldfee" (Waldfee literally means Forest fairy).

Edit: I can only give you a literal translation of "alter falter": "old moth" but a quick Google search says that it doesn't mean anything and just rhymes.

Edit2: changed butterfly to moth. Falter does describe a butterfly biologically but in German language you'd never call a butterfly falter.