An old-school smiling emoji is currently trending on Twitter, but it’s not an icon you have on your iPhone keyboard. Instead, it’s a GIF of a smiley face with buck teeth that slowly ...

The Smiley Curve Has Lost Its Wisdom Teeth . By James Fallows. March 13, 2011. Share. Save. By Liam Casey. ... "The curve is named for the U-shaped arc of the 1970s-era smiley-face icon, ...