Es buenisimo means Guenizimo.

Argentina said that the results achieved are long-awaited. It also means to accept or agree to something before making a proposal. It comes from the word "Buenísimo", which means "very good" and is used in the form of "gauchesca". It appeared in the system migration project of a natural gas company in 2004-2005, when the members of the migration team had to confirm the results of each operation or reach an agreement at the meeting. The members of this group are Carlos, Emmanuel "Sano", Gonzalo, Pablo and Uri. This expression began to spread more widely in 2006. Soon after the completion of this project, members dispersed and continued to use this expression in different areas. It is also possible to find extended vowels to prove that something is happy.

Gueniiiiiizimoooo！

Pablo: Can I copy a DVD? Do you copy DVDs? )

Carlos: Yes.

Pablo: Genizimo!

Carlos: It's an extended version.

Pablo: Genizimo!

Carlos: extras (I also copied the DVD of extras)

pablo:gueniiiizimoooooo！ ! !