A phrase uttered by an insecure girl when she says something stupid. By saying this over and over, she feels like she will convince herself and others that she is actually smart. Typically a brunette, but can also be a blonde.
Sometimes the intelligence of this person is masked by the stupid things she does or says.
Tracy "Is Michigan East or West of Indiana???"
Jolyn "Really Tracy???"
Tracy "Hey, I'm smart….really I am!?!?!?"