boogly-bok.

When I volunteered at Vacation Bible School, we went on field trips every afternoon. On our way back from the zoo one day, me and my friend sat with a cute little girl (7-8 years old) who absolutely loved my friend. Anyways, my friend was doing her chicken impression for the girl (bok, bok, bok). Then the little girl says, "boogly boogly bok!". We both asked her what that was. She told us it was an alien chicken. Because aliens say 'boogly boogly' and chickens say 'bok'.