Incredulous internet interjection

• "Huh?!?," in Internet shorthand
• "Huh?" ... and the theme of this puzzle
• "Huh?" in Internet circles
• "Are you serious?" in chat rooms
• "That can't be!" Internet abbr
• "R U SRS??"
• Marc Maron podcast
• "I don't know how to deal with this," initially
• "___ with Marc Maron" (podcast)

Wikipedia Word definitions in Wikipedia
WTF may refer to: