Anime with swearing = BEST

[Amethyst]

Saiyuki, especially the dubbed version... and they totally change Hakkai's character in the dubbed version to someone who cusses every other word and is totally mean, very unlike the Japanese subbed version of his character being nice and polite throughout the entire series!! Course we expect this from Sanzo (chain smoking, cussing monk) and Goyjo (chain smoking, cussing, girl chasing half demon) but not from Goku (youngest looking, although in reality is not young at all).