Yonyo
Yonyo is a typo for the word yoyo when greeting someone through text/social media/etc.
Boyfriend: Yonyo
Girlfriend: You're a genius! You just invented a new word.
Boyfriend: O,o What?
Girlfriend: Yonyo.
Boyfriend: I was saying yoyo.
Girlfriend: You're a genius! You just invented a new word.
Boyfriend: O,o What?
Girlfriend: Yonyo.
Boyfriend: I was saying yoyo.