These onomatopoeic words can be used as alienable nouns. Another etymology is that the name is onomatopoeic, based on the bird's grunting call note. The name is a loanword from Wiradjuri "guuguubarra", onomatopoeic of its call. It imitates the pounding of the drums in the rhythms and in onomatopoeic nonsense words. Other textures include polythematic, polyrhythmic, onomatopoeic, compound, and mixed or composite textures . The word "koel" is onomatopoeic in origin. This is known as naturalistic onomatopoeic depiction. As a further trademark he developed a special form of recitative with onomatopoeic stuttering. Pop is an onomatopoeic word for a small explosion or similar sound. The name is directly from the onomatopoeic Latin "cicada". Toowong is derived from "tuwong", the onomatopoeic name for the Pacific koel. Boom usually refers to an onomatopoeic word for the sound that an explosion makes. Some languages flexibly integrate onomatopoeic words into their structure. Many Aboriginal names are onomatopoeic, based on the sound of its scolding call. Long vowels also occur in loans and in a few onomatopoeic words (Grune 1998).