1. the nonsensical logic one posesses while dreaming that makes perfect sense until he or she wakes up
2. information one magically/automatically possesses in a dream without having learned it before
Kerrigan: What the hell! That doesn't even make sense!
Evan: I know! It was just dream logic.
2. Carly: So I had this insane dream last night where I was getting stalked by Invader Zim. He tasted like pickled peppers.
Ted: Sick! You tasted him?
Carly: Hell no! It was just dream logic.