Top definition
While on facebook, the red square signals that someone responded to your post in some fashion.

For fanatic fb'ers, it is a wait-and-see hunger and satiety experience.
After I posted the concert photos, I got 6 red squares of affirmation.

I could see the red square of affirmation from across the room. It made me very happy.
by Mumsie dogma February 27, 2011
Happy St. Patties Day!