The greeting comes from the Budweiser Whassup adverts that aired from 1999, where friends shouted the phrase at each other on the phone. A parody in Scary Movie in 2000 pushed it even further into pop culture, and the stretched delivery became a catchphrase copied in schoolyards, ringtones and early viral videos. This longer waszuuup version keeps that same phone greeting energy in a short clip. It is still used online because the reference is instantly recognisable and works as shorthand for a loud, joking hello between friends.