I am not sure I should tell you what I immediately thought an interrobang was. I could let you imagine; if I said “A very good looking all female version of MI5 involved in off the record methods of interrogating prisoners”. But I suspect that says more about me than about punctuation.
So – as they say in the most patronizing adverts – here’s the science bit -The interrobang, also known as the interabang, (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”).
I guess you would use in in sentences such as ‘She is pregnant‽’ when you are not sure if you have heard properly but if you have you are in a state shock. In which case it was probably MI5 who introduced idea of the mark in the first place.
Having read many books I don’t recall ever having seen this punctuation used. If you have please let me know where…