Many foreign fans at the World Cup have embraced the tradition. Vuvuzelas can be bought with flags and colors from other countries competing in the tournament, including the USA. And although South African soccer fanatics have no problems with it, foreign fans have had to put in effort to learn how to properly blow the instrument.
Getting the sound right takes some skill and a lot of lung capacity. A true vuvuzela cacophony needs legions of soccer fans with puffed-out cheeks, looking like Dizzy Gillepsie or Louis Amstrong, blowing their trumpets.
But the problem may be that too many soccer fans are actually getting it right, and the result, for many, is a nuisance.
A ban against the vuvuzela has been considered before. After last year's Confederations Cup, thousands of fans from all over the world sent e-mails and letters to the FIFA, urging it to outlaw the instrument from the World Cup.
Ultimately, however, it was decided that the the vuvuzela was "essential" to the African football experience.
Banning the horn, FIFA's communications director Hans Klaus told reporters last year, would be akin to taking away the cowbells from Swiss soccer fans and banning English soccer fanatics from singing.
"It will be a World Cup with African sound," said Klaus. He said he was convinced the vuvuzelas would be a "hit at the World Cup."
FIFA maintains that the vuvuzela, annoying as it might be, is considered too entrenched in South African culture to outlaw. That may change if the outcry from its critics becomes louder than the drone of its sound.