In roleplaying games, the dump stat is the ability attribute you put your characters lowest score into.
It is the the attribute that might be least useful to the kind of character you want to play. In real life, the same term is used as a funny slang for something that you might feel like you're great at. Intelligence represents one’s ability to analyze information, or how well your character learns and reasons. This vintage design is for those that feel that they might be a little lacking in those departments.