pocket square 

A handkerchief inside the breast pocket of a jacket. It can be folded in myriad ways, from the Straight Fold to the Presidential, and scores in between; it adds a bit of extra flair to make a great suit even better.

Pocket squares rule!

pocket square by Fartious the Great August 2, 2010

pocket square 

fake handkerchief -the idiotic fake kerchief seen in some suits (popular particularly with darker complected newscasters) -not much looks dumber, or ruins a nice suit quicker than these goofy looking things!!!

he had a beautiful armani suit that looked goofy as hell, because of the pocket square!!

pocket square by michael foolsley December 10, 2009

Alabama pocket square 

a gentleman's beverage in flask form placed in the inner pocket of a jacket during a refined social gathering, such as a banquet or a reception.

Look, Steve brought his Alabama pocket square - he just spiked his sweet tea with it.

Alabama pocket square by Jeff Handley March 13, 2012