When your chocolate dessert somehow gets on the center of your forehead in a perfectly circular shape like a soft chocolate chip and your dining guests think you are in a confectionary cult.
Dude….what’s that Dukey Dot on your forehead?
When someone in a group just isn't liked, and everyone tells them to "Go Shag Dot" when he/she speaks.
Girl (who is liked); Hey, do you all want to come to my house?
Group; Yeah, sure
Boy (who isn't liked); Then we can stay at my house?
Group; Go Shag Dot!