Johnny brought to my attention this cute little site, Lost in Translation, which passes a given text through a series of online translators between different languages and displays the resulting mess. It's lovely, try it.
Having played with it a bit, I came upon the brilliant idea of combining it with my automatic badmouthing generator, PEST (the online version was written by Gaal Yahas, I wrote the original back in the old days, in Pascal). Here are some of the results:
Original: You fishy bastard!
Translation: Hybrid he of the fish!
Original: A bison has explored your grandmother!
Translation: A bison studied its grandmother!
Original: There's no point denying it – your obese sister unfortunately married a delightful squid!
Translation: It has an end, of which she denies it – their sister of beleibte unhappyly connected koestlichen Kalmar!
Hours of fun, I'm telling you.