Spekter actually gave a great deal of thought to naming his new punctuation mark. The runners-up names included exclamaquest, exclarotive and rhet. Exclamaquest and interrobang were particular favorites of Spekter.
The interrobang is also a particularly concise way of writing out traditional Yiddish sarcasm, e.g. "Nu, you call this a dinner‽" or "My grandson is going to be a pediatric gynecologist‽ This is a profession‽"