interrobang (noun)

1. During World War II, the interrobang was not commonly used in typewritten documents but gained popularity in the 1960s.

2. In the love letter, he used an interrobang to express his joyful surprise when proposing to his partner.

3. The wizard's spell book contained peculiar symbols, including the interrobang to represent a powerful and enigmatic spell.

4. The main character in the anime series had a catchphrase ending with an interrobang, reflecting their constant state of curiosity and excitement.