Meaning of くさっ in Japanese

Words related to くさっ

はらわたのくさったおとこ(harawatanokusattaotoko) 【腸の腐った男】

くさってもたい(kusattemotai) 【腐っても鯛】

(exp) something that is not what it once was but it is still high class; quality is quality; even if it's rotten, it's still sea bream

さんじゃくさってしのかげをふまず(sanjakusatteshinokagewofumazu) 【三尺去って師の影を踏まず】