Top Definition
A change in practice you supposedly should have known about. Its principle originates in medicine, but has generous applications in society, politics, and love.
They've been doing it this way forever Then I do it and we get a retrocol saying no, we changed that, didn't you get the memo?
by the Napper August 30, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.