A person who rummages through trash/garage sale "free" boxes for buried gold (i.e. empty bottles, copper, scrap aluminum, broken household goods, etc.) in the middle of the night.
See Also: trash picker
Jen: Hey. What should we do with these empties?
Derek: Throw them out in the front so the landclammers can get them; they'll be gone by morning.
Jen: Sweet. Can I throw my aluminum siding and broken laserdisc player out there, too?
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."