,,Akumpo'' is a shorter version of ,,Antetokounmpo''. People use it because most of them can't spell it correct. The origins come from
Giannis Antetokounmpo, also known as the ,,Greek Freak''. Giannis is a professional Greek
basketball player in the NBA for the
Milwaukee Bucks. Here's how it spells in Greek language:
Γιάννης Σίνα-Ούγκο Αντετοκούνμπο
And here is the spelling of it in English:
ˈʝanis adetoˈkumbo