nicky nicky nine doors
/ (ˈnɪkɪ) /
Canadian informal the practice of knocking on a door or ringing a doorbell and running away before it is answered
What’s The Difference: Average, Mean, Median, And ModeAs you probably know the terms average, mean, median, and mode are commonly confused with one another because they all describe ways to talk about sets of numbers.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012