noun
Refers to a person's social or financial influence, often in phrases like 羽振りがいい (to be influential/well-off) or 羽振りを利かせる (to wield influence).
彼は最近羽振りがいいらしい。
He seems to be doing very well lately.
あの政治家は地元で羽振りを利かせている。
That politician wields a lot of influence in his hometown.
noun
flapping of wings
Archaic original meaning; now rarely used outside historical or poetic contexts.
古語では「羽振り」は鳥が羽ばたく様子を指した。
In classical language, 羽振り referred to the flapping of a bird's wings.
Originally referred to the flapping of a bird's wings (羽振り), which metaphorically extended to mean a person's influence or prosperity, akin to the way a bird's wingbeats create a noticeable effect.