also: はぶりのよい
expression, i-adjective (yoi/ii class)
influential; powerful; prosperous; doing well
Describes a person who is currently influential, well-connected, or financially successful. Often used in the phrase 羽振りがいい, but the attributive form 羽振りのいい is common before nouns like 人 or 政治家.
See also: 羽振りがいい
彼は今、羽振りのいい実業家だ。
He is now a prosperous businessman.
羽振りのいい政治家には人が集まる。
People gather around influential politicians.
Predicative form meaning 'to be influential/prosperous'. 羽振りのいい is the attributive form used before nouns.
From 羽振り (haburi, 'influence, power, prosperity') + がいい (ga ii, 'is good'), with the attributive form のいい replacing がいい when modifying a noun. The exact origin of 羽振り is uncertain, but it may relate to the spreading of wings (羽) as a metaphor for extending one's influence.