BIT OF SWEARING is a phrase used to describe a mild form of swearing, usually in the form of an OATH or an idiom. An OATH is a solemn promise made to a person or deity, and an idiom is an expression that has a figurative meaning. The crossword solutions for BIT OF SWEARING are OATH (4 letters) and IDO (3 letters). OATH is a term used to describe a solemn promise made to a person or deity, while IDO is an expression that has a figurative meaning.