Funya funya

Funya funya is used when things become soft and elastic.
(in many cases, those things are normally hard, but when those get
softened, it becomes funya funya)

ie)
Jp: Shinbun ga ame ni nurete FUNYA FUNYA da.
　しんぶんがあめにぬれてふにゃふにゃだ。
En: A newspaper got wet and soften by the rain.

Jp: Anoko no hanasi kata ha FUNYAFUNYA siteirune.
あのこのはなしかたはふにゃふにゃしているね。
En: The way she speaks is very soft.
(normally impression of Funya Funya talk is "not independent")