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• On alcohol: four is one more than more than enough. -- Jim Pastore
• Four-wheelers eat more bush.
• Four minus two is one and the same.
• You may be redneck... if your flashlight holds more then four batteries.
• When everything has been seen to work, all integrated, you have four more months of work to do.
  -- C. Portman of ICL Ltd....
• clue-by-four [Usenet: portmanteau, clue + two-by-four] The notional stick with which one whacks an aggressively clueless person.
  This term derives from a western American folk saying about training a mule "First, you got to hit him with a two-by-four....
• You know Marge, getting old is a terrible thing. I think the saddest day of my life was when I realized I could beat my Dad at most things, and Bart experienced that at the age of four.
  -- Homer, "Moaning Lisa...
• Cunnilinguist - one who speaks four languages.