The hiragana syllable ゔゅ (vyu). Its equivalent in katakana is ヴュ (vyu).

to grumble (about something trivial)

色々, 色色: various

(archaic) Solanum melongena, the eggplant or aubergine / (archaic) a 茶入れ (chaire, “tea container”) in the shape of an eggplant / (figuratively) poverty, destitution