A custom lettering piece.
According to a highly literate and knowledgable source, the term ‘heyo’ means:
1. A greeting based on the greeting, "hello." Heyo is meant to be a more positive alternative to the monotonal "hello" and simple "hi", optimally used when said in exclamation but not necessarily since the greeting still implies this when said in a normal tone.
Jon: Heyo :D
Nick: Hey, what's up :D?