interrobang

Short definition from Wiktionary

Noun

1. 1
   The nonstandard punctuation mark ⟨‽⟩ (a combination of ⟨?⟩ and ⟨!⟩), which may be used at the end of a sentence to express excitement or disbelief, or to indicate that it is a rhetorical question.
2. 2
   A combination of a question mark and an exclamation mark; ⟨!?⟩ or ⟨?!⟩.

Verb

1. 1
   To exclaim and question at the same time.