backseat cleaning 

When your parent or parents tell you what to clean as you're cleaning, which is completely unnecessary.

"John, don't forget to dust. Oh, while you're dusting, make sure you're getting the edges of the fan. And vacuum after you're done. And while you're vacuuming, get underneath the couch."
"For fuck's sake, mom, enough with the backseat cleaning!"

backseat cleaning by GK162248 September 25, 2013