What is a sagan you ask? As a humorous tribute to Carl Sagan and his association with the catchphrase "billions and billions", a sagan has been defined as a large quantity of anything. There is also the warhol which measures fame or hype as in 1 kilowarhol=15,000 minutes of fame, based on Andy Warhol's famous quote about everyone having 15 minutes of fame. Many of our now common measurements has come about due to our need to measure new technology:
wheaton=the number of Twitter followers relative to the celebrity of Star Trek's Wil Wheaton, as in milliwheaton or microwheatons
mickey=Named after Mickey Mouse, a mickey=is the length of the "smallest detectable movement" of the computer mouse. It's about 1/200 to 1/300 inch or about 0.1 mm.
|Oliver Smoot being used as a yardstick for the Harvard Bridge - source: Smoot 50th|
Other less genuine but more fun units of measures would be:
1. Ratio of an igloo’s circumference to its diameter = Eskimo Pi
2. 2000 pounds of Chinese soup = Won ton
3. Time between slipping on a peel and smacking the pavement = 1
4. Half of a large intestine = 1 semicolon
5. 1,000,000 aches = 1 megahurtz
6. 1 million-million microphones = 1 megaphone
7. 52 cards = 1 decacards
8. 4 nickels = 2 paradigms
9. 1 kilogram of falling figs = 1 FigNewton
10. Basic unit of laryngitis = 1 hoarsepower
Researched Here and Here and at Wikipedia of course.