Nouns becoming verbs and literally not meaning literally add to writers’ confusion—along with cooked-up punctuation marks such as the interrobang.
The interrobang, The Guardian reports, is a non-standard punctuation mark—?! or !?—used at the end of a sentence that asks a question in an excited manner; expresses excitement or disbelief in the form of a question; or asks a rhetorical question.
Here are a few examples:
Why stop with the interrobang?
Free download: 10 punctuation essentials
In the spirit of combining punctuation marks to create something new, how about combining the period and the question mark?
You could use these marks together to express doubt about a statement: