| Noun | 1. | fug - (British informal) an airless smoky smelly atmosphere colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech Britain, Great Britain, U.K., UK, United Kingdom, United Kingdom of Great Britain and Northern Ireland - a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom |