The interrobang (/ɪnˈtɛrəbæŋ/),[1] also known as the interabang[2]‽ (often represented by any of the following: ?!, !?, ?!?,?!!, !?? or !?!), is an unconventional punctuation mark intended to combine the functions of the question mark (also known as the interrogative point)[3] and the exclamation mark (also known in the jargon of printers and programmers as a "bang"). The glyph is a ligature of these two marks[4] and was first proposed in 1962 by Martin K. Speckter.[5]
^"interabang". The American Heritage Dictionary of the English Language (5th ed.). November 1, 2011. Archived from the original on November 14, 2012. Retrieved June 14, 2012.