to drink from somebody else's soda or pop by holding the can high, over your mouth and slanting it so that the drink falls right into your mouth without having you touch the can with your mouth; which would be unhygenic

"allow it" means to just leave something alone, or don't worry about it. People in West London say this quite often.

Tracing its origins to high school kids in Las Vegas, Nevada, the act of drinking from a friend's soda or water without your lips actually touching the bottle. Share your drink, not your germs.

The best song "TLC" ever made!

The visual effect created when a person urinates on your forehead which resembles standing behind a waterfall.

This is when a group of people begin drinking their alcoholic beverage of choice, and the 2nd person in line doesn't stop drinking until the first person stops and the 3rd doesn't stop until the 2nd stops etc.

A smoking device similar to a gravity bong. It involves taking a 20oz bottle and burning a small hole at the bottom. Then attaching a bowl-piece to the cap. One fills the bottle with water (using a thumb to plug the hole), attaches the cap/bowl-piece, lights the substance, and releases their thumb. The water uses gravity to keep the substance lit.