腐くされ縁えん

noun

inseparable relationship (undesirable); hard-to-break bond

Refers to a relationship that is difficult to sever despite being unwanted, often due to shared history, obligation, or bad luck. Carries a negative, resigned tone.

• あの人ひととは腐くされ縁えんで、何なん度ども縁えんを切きろうとしたけど結けっ局きょくまた会あってしまう。

  I have an inseparable yet undesirable relationship with that person; I've tried to cut ties many times but we end up meeting again.

• 腐くされ縁えんの友とも達だちって、なんだかんだで長ながく続つづくよね。

  Friends you can't seem to shake off, for better or worse, tend to last a long time.