A: When a person, normally lazy, edits a picture with Paint, and it ends up being a piece of crap (Normally on Purpose) to be funny.
Most people who do this are either:
A: Lazy
B: Too lazy to download it for free
C: Too honest of a person to download it for free, thus becoming a Chump, or Sucker.
Example A:
Dude 1: Hey dudes, check out this sweet Paintshop I made of Lauren!
Dude 2: Wow. That's the worst edit job I've ever done. It's clear that you just copied her face from her Facebook and pasted it over a picture of Joey's body that he took last Summer.
Dude 1: Yeah! Isn't it great?!
Example B:
Dude: There mom, I finished picking up all the sticks in the yard.
Mom: Well, it's "Good Enough for Paintshop", so you can go ahead and go ahead on to Ben's house.
When editing photos with Paint on a windows-based computer since most people don't have photoshop, either becasue they can't afford it or because they are idiots and don't know how to download it.