exclamation mark - the sign (!) used in writing after an exclamation.
exclamation - 1. the act of exclaiming; outcry; loud complaint or protest... 2. an interjection.
Today I got me mitts onto a school newsletter. On the front is a message "from the principal". It is three paragraphs long. The first paragraph consists of eight sentences, seven of which end in an exclamation mark. In the second paragraph, there are three sentences; all three end in exclamation marks. The third paragraph has two of its three sentences ending in exclamation marks. Total: twelve of the fourteen sentences have exclamation marks.
It's a bit excessive dontcha think? Halfway through the first paragraph the exclamation mark has lost all meaning. And what of the two sentences that don't have exclamation marks? If they all had exclamation marks I could at least pretend I'm reading an Archie comic.