A Frequently unreliable person who says that they will do somthing or attend somthing, but never shows. Usually this is done without notice.
by John70 October 11, 2007
Ashley was supposed to call me yesterday to make a time for that playdate, but she flaked out, what a flake.
by Roxapebble May 16, 2009
(verb) The verb flake is probably derived from the noun flake. The verb means to act like a flake by being unreliable, particularly by not showing up at an agreed upon time or place.
by BoyntonZ April 17, 2016
by forteblast January 02, 2011
by Are you gonna make it up to me September 24, 2019
by bart September 28, 2004