- a picnic or social gathering at the seashore at which and other seafood are , sometimes with corn and other items, traditionally on hot stones under a covering of seaweed.
- Informal. any social gathering, especially a very noisy one.
noun US and Canadian
- a picnic, often by the sea, at which clams, etc, are baked
- an informal party
1835, American English, from(n.) + (n.). By 1937 in jazz slang transferred to “an enjoyable time generally,” especially “jam session.”