like brass in colour, or too bright

a brassy yellow 铜黄色

loud and unpleasant

Her brassy voice rang out from the next room. 她破锣般的声音从隔壁传了过来。

used to describe a woman who speaks and laughs too loudly and who dresses in bright, cheap clothes, often wearing too much make-up

She was your typical brassy blonde. 她就是你说的那种典型的花哨浅薄的金发女郎。