Strupag

Which "Anglo-Saxon" language were you referring to?

bullshit is, as far as I know an American portmanteau word, probably invented around the 19th Century.

fuck does not appear anywhere in Anglo-Saxon literature and is thought to have been introduced from Middle Dutch in the mediaeval period.

Though there undoubtedly were Anglo-Saxon words descibing bodily functions, it is hard to know for sure what they were as the monks that recorded the language for the whole of its written life didn't record them.

;-)