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in reply to What's your favourite non-word?

blarg. flup. dink. snarg.

I like words that are not words, but that I can pronounce. I think I like non-words that end in 'arg' as well, though I'm wholly uncertain why. Maybe because those three letters are under the left hand. I've heard that many placeholder-type words are chosen for ease of typing like that (dreadpiratepeter's 'fred' fits the bill.)
Good placeholders, bad passwords.