When sitting near or next to someone and posting on their Facebook wall. This sometimes happens at cafes or in school computer labs, even among roommates. (comes from the word juxtapositioning)
I was creepin' on my roommate's page while he was next to me and I couldn't resist juxtaposting on his wall.
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.