A phrase that is never used literally, but rather is always a response to someone's laughing or poking fun at a problem the person has reason to be seriously concerned about. Sometimes this reproach is, itself, used in a half-amused, bantering way.
"The doctor said that I tested negative for cervical cancer, so I won't be at risk of infertility after all."
"Good to hear that it didn't render your reproductive organs totally out of cervix."
"Well, I'm glad you find this so amusing."
The old man that had ant features for a face lunged at his mistress and shamelessly pawed at her all over while smothering his face on her upper body like a dog or a really fat chick over a milk bone. Amusing.