Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi), Adverb (fukushi), Adverb taking the 'to' particle, Suru verb
soft; flabby; spongy; mushy; soggy
Onomatopoeic or mimetic word
なんかそれ、ブヨブヨしていて気持ち悪いね。Oooh, gross! What is that stuff? It's all spongy.
Also written ぶよぶよ