The point of this is to name episodes where the writers goofed up or put something in a particular episode that contradicts or deems a fact revealed in an earlier episode to be false or non-exsistant. Or it can be something that happens that wouldn't be possible outside the realms of normal cartoon running gags used in many occurences like a wound disappearing or something used in a little, unimportant gag suddenly vanish in the next scene.
For example, in "Battle of Bikini Bottom", Patrick said that he never washed his hands before, yet in "Something Smells"(an earlier episode), we see him washing his hands at the theatre.
So just post goof-ups you've seen at the bottom. vvvvv