|Definition - Fowler's term for the tendency to make full stops do all the work, i.e. to use periods when colons, semi-colons, and even commas should be used.|
Quotation - "First comes what may be called for short the spot-plague—the tendency to make full-stops do all the work. The comma, most important, if slightest, of all stops, cannot indeed be got rid of, though even for that the full-stop is substituted when possible; but the semicolon is now as much avoided by many writers as the colon (in its old use) by most. With the semicolon go most of the conjunctions."
(Source: Fowler, The King's English, Chapter IV. Punctuation )