It really whips the llama’s ass
"The slogan was riffed off a Wesley Willis track called, unsurprisingly, Whip The Llama’s Ass.
The clip became so popular that Winamp eventually adopted the Llama as its mascot, leading to the birth of Mike The Llama."
https://gizmodo.com.au/2013/11/a-brief-history-of-the-winamp...