Meaning

1 senses
  1. (UK, derogatory, informal)An extensive luxurious basement added to a home to avoid the difficulties of building an extension above ground.

Origin

So called because the greater part of an iceberg remains below sea level.

So called because the greater part of an iceberg remains below sea level.

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: iceberg basements

See also

neighbours in the dictionary
iceberg basement — meaning, examples, forms, synonyms | Krumeto