Interrobang

The interrobang, also known as the interabang, ( /ɪnˈtɛrəbæŋ/), (often represented by ?! or !?), is a nonstandard punctuation mark used in various written languages and intended to combine the functions of the question mark (also called the “interrogative point”) and the exclamation mark or exclamation point (known in printers’ and programmers' jargon as the “bang”). The glyph is a superimposition of these two marks.

Read more about Interrobang:  Application, History, Inverted Interrobang, Entering and Display, Prominent Uses