"What's an interrobang?!"
An interrobang is a form of punctuation. It's the best form really. Some say it's what gives Keeferman his power. It's a combination questionmark/exclamationpoint. These days it seems almost a secret. Keeferman is bringing it back though. All those sarcastic comments and facetious questions that you didn't know how to punctuate? They take the interrobang. It's got a storied history and you can find more about that here.
"Is Keeferman real?"
"What's Keeferman's secret identity?"
"What's Keeferman's day job?"
"What's the deal with Stimpy?"
"Who's that other cat in those pictures with Stimpy?"
"Who's Joan?"
"What’s next for Keeferman?"