Googlewhacks are (ideally) two-word combinations that return exactly one hit on Google. I think they must also have a certain Je ne c'est qua to them. Not just any two-word combination that satisfies the Google constraint ought to be considered a beautiful whack! Of course, the value of a whack is correspondingly lower if it's only hit happens to be in a "list of words" document, as opposed to a cogent discussion of some kind. And oh, the words need to be valid dictionary entries. i.e. underlined in the result bar returned by Google.
Check www.googlewhack.com for the authoritative guide to googlewhacking.
As of Feb 2002:
- Onomatopoeic dandelions
- Proletarian gaussians
- Geosynchronous suppository
- Bisexual bric-a-bracs
- Simplex somnambulator
- Particular pompasses
- Morphophonemic mellifluence
- Minstrel singularization
- Anachronous implantation