Here's some: "antipacek", "progressive killer fat", "hut refusal guideline", "south-stream resignation", "pamplem", "conscience bw", "fog log dog bog", "layer iron trolley", "prevent publication frequency", "sconspiracyn".
Here's a simple calibration game: propose some phrase(s), like "the ultimate east care pant" (something one of my pairs of pants say) and ask "How likely is it that Google return no search results for this phrase (in quotes)?"