The most legit name ever.
In Greek the name Demetri, is also know as Mitso.

A cultural and aesthetic mind-state that prioritizes making money, even as an “underground” or “radical” creator. The work isn’t made for money, but it’s the money that matters the most.

Mitsos is a word wich can describe any person that you cannot remember usually used when

a friend/relative does not know the individual.

Also "Mitsos" can usually be called as "Mitsos123".

Mitsos is a word that is commonly used for when you cannot remember someone name or when a friend/relative does not know the indidvidual and you to bored to explain who he is.
A common variation of the word "Mitsos" is Mitsos123.