尻しり癖くせ

noun

incontinence; promiscuity

Literally 'butt habit'; a crude or slangy term. Can refer to fecal incontinence or, by extension, to sexual promiscuity (especially of women). The promiscuity sense is vulgar and derogatory.

• あの人ひとは尻しり癖くせが悪わるいらしい。

  I hear that person has loose sexual morals.

• 高こう齢れいで尻しり癖くせがついてしまい、オムツが必ひつ要ようになった。

  Due to old age, they developed incontinence and now need diapers.