1. A punctuation mark in the form of a question mark superimposed on an exclamation point, used to end a simultaneous question and an exclamation: The typesetter at the newspaper had a difficult time creating an interrabang for the lead article.
2. A rarely used, nonstandard English-language punctuation mark (‽) intended to combine the functions of a question mark and an exclamation point: The bang in interrobang is a printer's slang term for an exclamation point. 3. Etymology: interro(gation point) + bang, "exclamation point (printers' slang)."

The typographical character resembles those marks superimposed one over the other. In informal writing, the same effect is achieved by placing the exclamation point after or before the question mark; for example, "What?!" or "What!?".

A sentence ending with an interrobang either asks a question in an excited manner or expresses excitement or disbelief in the form of a question: "What? You forgot to put gas in the car?!"