Someone from Glasgow in Scotland. Majority of male Glaswegians wear white trackies, caps and sport shaved heads. These are commonly known as neds or chavs.
Person 1: "What do you call a Glaswegian in a suit?"
The art of drawing an obscene amount of flem from your esophagus (or honking a loogie in colloquial terms), swashling it around your mouth like a fine Northern Portuguese drop of port then finally releasing said flem on an unsuspecting member of the public’s chest in true Glaswegian fashion.
Innocent bystander: Why Charles, i don’t know why I brought my pink Christian Dior Cannage stitched bag over my Louie Vuitton Canvas...
Person 2: Aye, why don’t you wear this instead ye posh cunt **spits a Glaswegian swashbuckle on her chest**
A head butt. Where one person violently smashes his or her forehead into the face of another normally resulting the latter's discomfort and/or severe facial injury.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.