To be unpleased by an event, which leaves with a certain amount of insatisfaction for the rest of your day.
I was supposed to go on a date with this amazing girl tomorrow, she cancelled because she had too much work to do. I am so off. That's probably the bestdefinition of "to be off", since you're really excited, but get taken your fun away suddenly.
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."