We developed nicknames for bad flip jobs after viewing so many:

“Spray Foam Specials” - gobs of sprayfoam insulation and a fresh coat of paint.

“Gap Properties” - because who needs floorboards to actually meet?

“Skatepark Schemes” - for when the floors are so bowed you can do lip tricks at the room edges

“Flashpoint Fixers” - surface-level flip jobs that kept the knob-and-tube wiring alongside newer Romex

“Oil Derricks” - any home with an oil tank on a foundation of compacted earth or otherwise lacking a groundwater barrier

A lot of flippers aren't dealing with scary stuff like foundations or structure, that's risky and expensive. It's cheap to throw up some new drywall and vinyl floors to make it look renovated though.