Definition of balla
A "balla" gesture or action is done by someone who could be described as a "baller", i.e. an exuberant person who wants to ostensibly show that he has money. The "baller" does "balla" things like going into a club or nightclub and throwing banknotes around to give to people. The expression also marks the excessive or capricious spending. Paying an extra 150 euros in delivery costs for an 80 euro item because you don't want to wait an extra day for the regular delivery is balla. As we can see in this example, there is a disregard for money and a whim.
Further clarification of the term balla
The epitome of the term balla is probably Dan Bilzerian, a millionaire who claims to have made his fortune in poker. Bilzerian is known on social media for his love of guns and pretty girls. Playing poker for hundreds of thousands of dollars sounds baller. The "baller" obviously has the need to impress people while showing that he has a lot of money. Today, the definition of the term has broadened to mean "luxurious". If a friend shows you his new 10,000 euro Rolex, you can tell him that his watch is very "baller".
