Low-res was slang for a person considered to be contemptible or of low social standing, synonymous with the term "low-life".
In an alternate 2015, where Marty McFly caused Griff's gang to crash into and damage the Courthouse during a hoverboard chase, resulting in their being arrested, Marty Jr. was seen exiting the Cafe 80's; he was almost hit by a car, and called the driver "low-res".
Behind the scenes
- Alluding to a computer generation, the term is a shortened form of "low resolution" which usually indicates an image with poor quality. It was later then used as a slang term for someone of that nature.
- Back to the Future Part II (in YOUTH JAILED newspaper article)