No matter what you call it, it's the most ubiquitous and onomatopoetic toy in 20 years.
From the time.com
The word Zipper is onomatopoetic, because it was named for the sound the device makes when used, a high-pitched zip.
From the en.wikipedia.org
Belonging to this category are onomatopoetic words.
From the en.wikipedia.org
A gobble is truly onomatopoetic.
From the post-gazette.com
More examples
Onomatopoeic: of or relating to or characterized by onomatopoeia
Echoic: (of words) formed in imitation of a natural sound; "onomatopoeic words are imitative of noises"; "it was independently developed in more than one place as an onomatopoetic term"- Harry Hoijer
(onomatopoeia) using words that imitate the sound they denote
(Onomatopoeia (comics)) Onomatopoeia is a DC Comics supervillain who has faced Green Arrow and Batman. He first appeared in Green Arrow #12 (March 2002). He was created by Kevin Smith and Phil Hester. IGN's Daniel Crown called him "one of the coolest new villains of the decade".
(Onomatopoeia (Flobots album)) Onomatopoeia is the only album by Jonny 5 + Yak, with Jonny 5 later going on to form the band Flobots, released locally in 2001. The album featured David Gralow on guitar, Terrence Favors on cello, and Jaymz Haynes on bass. ...
(onomatopoeia) The property of a word of sounding like what it represents; A word which has the property of onomatopoeia, such as "gurgle" or "hiss"; The use of language whose sound imitates that which it names
(Onomatopoeia) The use of words whose sounds suggest their meaning
(onomatopoeia) The application of sounds that are comparable to the noise they represent for an artistic effect. For instance, buzz, click, rattle, and grunt make sounds similar to the noise they represent.
(Onomatopoeia) A word that sounds like its meaning.