PerfectPedant: Pedantic and offensive, a wonderful combination. I am not American, but that reference to "North American" dictionaries is spectacularly condescending. And in response to other posters, the fact that many often use "overexaggerate" when they simply mean "exaggerate" is irrelevant. Of course there are degrees of exaggeration. In situations where a degree of exaggeration is intended or desirable, then it stands to reason that to go further would be to "overexaggerate". Pregancy or uniqueness are false analogies used to artificially bolster the argument.