Rob's Room: Batman Gets Chummy in Issue #55

MINOR "FUN" SPOILER (if you are reading the current books): I was catching up on some Batman books and laughed at this moment... then realized it was an error and laughed more (partly because I'm such a dork I recognized it was a mistake...)!  Am curious if the other two "chum" quotes are recognized from other stories?

Nice try explaining it away Tom King! ;)