clambake

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A seashore picnic where clams, fish, corn, and other foods are traditionally baked on heated stones covered with seaweed.
• noun Informal A noisy or lively party or gathering.

from The Century Dictionary.

• noun A repast consisting chiefly of clams baked in a hole in the ground on a layer of stones previously heated, the hole being covered with seaweed, etc., during the process, usually as an accompaniment of a picnic at the sea-shore; hence, a picnic of which such a repast is the principal feature.

from the GNU version of the Collaborative International Dictionary of English.

• noun The backing or steaming of clams on heated stones, between layers of seaweed; hence, a picnic party, gathered on such an occasion.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An informal beach party in which food, usually seafood, is cooked in a pit dug in the sand, filled with hot coals.
• noun slang An instance of smoking (usually marijuana) in an enclosed space.
• adjective figuratively Informal, makeshift, sloppy.
• verb intransitive, slang To smoke marijuana in an enclosed space such as a car with the windows up.
• verb transitive, slang To enclose something and fill it with smoke by smoking (usually marijuana) inside it.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a cookout at the seashore where clams and fish and other foods are cooked--usually on heated stones covered with seaweed