When you no longer need to refer to someone by their last name. Usally used when 1. two enemies (particuarly Jocks) are trying to end a fight or if 2. an adult wants you to call them by their first name.
Draco Malfoy: Hey Harry Harry Potter: What so now we're on first name basis?
you: You have a beutiful house Mrs. Smith
Mrs. Smith: Call me Wanda.
You: Oookay that's a little strange
adj. Descriptive of an uphill gardener who's so far in the closet he's found Narnia, taken out a mortgage there and spends his days fraternising with the local populace.
"I don't care if he was married to the bird off Dawson's Creek, that Tom Cruise is so far in the closet he's on first name terms with Mr Tumnus".
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
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.
I had a trucker's tan after driving for 10 straight hours on a sunny day.