Glasgow smile
A Glasgow smile is a wound caused by making a cut from the corners of a victim's mouth up to the ears, leaving a scar in the shape of a smile.
The act is usually performed with a utility knife or a piece of broken glass, leaving a scar which causes the victim to appear to be smiling broadly.
The practice is said to have originated in Glasgow, Scotland in the 1920s and 30s.
Actor Tommy Flanagan was given a Glasgow smile when he was attacked outside a bar in Scotland.
