one who does ridiculously annoying things to his/her friends. Most commonly used when more than 2 people are playing a video game such as Halo and one person incessantly kills his own teammates to be funny.
1: "Who was that guy that kept killing us on xbox live last night?"
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.
"Base we've got some square groupers floating outside of Miami harbor."