Pills that make you feel good when you take them (i.e. Adderall). Their clinical name is too solemn sounding to be referred to as such, so you just call them yim yams.
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."