Open up the old thesaurus to nonsense and you'll find a lot of great words--- monkeyshine, rubbish, hogwash, malarky, balderdash, bombast, gibberish, fatuity, flightiness, ludicrousness, palaver, and my favorite, poppycock.
There's this mall in Paris, I think, called le centre Pompidu (sp?) and, ok I just think that word is so funny!! like instead of saying mall, it'd be 'Hey wanna go to the Pompidu?' lol