Often used in first person shooter games, "spotlocking" is when a player sits somewhere and aiming directly at a passage of some sort and therefore "spotlocking" that area.
It could be a doorway or a tunnel for example, and players that runs through the passege are easily shot down.
"Spotlocking" is mostly used by some camper noob who cannot get enough kills.
"OMG, some n00b is spotlocking the door, I can't get through"
"Guys I need some kills, I think I'll spotlock this corner"
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the USCoast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
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.