Like the infamous "that's a dip" it means that a person who is being spoken to has made a mistake of something really obvious
after it is said the person who made the mistake is usually hit on the forehead
after it is said the person who made the mistake is usually hit on the forehead
Matt is wearing a red shirt.
John: did you just see Matt's blue shirt?
Mark: his shirt is red. That's a Cooney
(forehead slap)
John: did you just see Matt's blue shirt?
Mark: his shirt is red. That's a Cooney
(forehead slap)
by mentalbaby32 June 11, 2008
Get the That's a Cooneymug. by TANK031193 August 30, 2011
Get the Having a Cooneymug. by Fresh Factory Prince Of Melb March 3, 2021
Get the Tim Cooneymug.