In federal criminal cases, cooperating with the government is commonly known as a proffer agreement, interview, proffer letter, or a “Queen for a Day” letter.
A proffer agreement is a written contract between a federal prosecutor and defendant, or a person under a criminal investigation, where they will make an agreement to give the prosecutor useful information. Their statements won't be used against them later in a criminal proceeding.
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."