someone named max (i think) saying “hola niños” followed by some scream laughing type stuff. it is a popular sound on tiktok with people making tiktoks that say similar things to “when you’re the first one in the online spanish class” followed by the spanish teacher going “hola niños!”
Similar to hey! or hi! - Popular and Informal greeting used among young people in spanish language and travelled people as a trendy greeting. Used either with friends or unkown people.