A non-alcoholic hangover happens when someone has not eaten all day or has very foolishly consumed a large cup of coffee then taking a standard dose of dayquil, resulting in a headache that resembles a hangover.
John Doe: I have such a throbbing headache.
Jane Doe: Why?
John: I have a terrible cold and I took some medicine after I had my morning cup of coffee.
The practice of drinking a beer (from a longneck bottle), then drinking a wine cooler, Finally finishing it off with another beer.
1. Drink your favorite beer from a glass bottle. 2. Then Consume, what some may say is a girly drink, i.e. a bottle of Bartel's And James. 3. Finally, Drink another bottle of beer. Hence the term "Longneck Threesome"