That's "Bicycle-Shaped Objects", in my snob-speak. Huffy, Magna, Pacific, etc. The stuff of all the dash-mart stores (K, Wal, etc.)
I just tuned up three of these monstrosities that a friend's office was donating to their adopt-a-family for the holidays. And, as expected, they were rife with all the things that are wrong with BSOs: steel rims, cheesy stamped brakes that only offer a hint of slowing, two-ton suspension that doesn't suspend anything, crunchy maladjusted bearings, wheels installed crooked (with brakes adjusted sideways to compensate), you name it. It took a full afternoon of work in a very-cold garage (with a lot of hammering and cursing) to get them rideable. If you paid a shop to do what I did, the tuneups would cost more than the bikes.
But when I was done, I couldn't help but smile. Any one of them was at least equivalent to my first BSO (an orange Murray banana-seat beast) that my mom and dad bought from Farm & Fleet some thirty years ago, and look where that ended up.
I can't say these are great bikes, but I'm withholding final judgment for about three decades.