silent but deadly

and SBD

mod. [pertaining to a release of intestinal gas] soundless but smelling horribly. Who floated that SBD air biscuit?

Name	Pronounced	Usage
P&Aelig;Ga	-	Anglo-Saxon
Austins	['ɔstinz]
Crocifissa	kro-chee-FEE-sah	Italian
Hro&Eth;Gar	-	Anglo-Saxon
Gopinatha	-	Hinduism
CÉSar	THE-sahr (Spanish), SE-sahr (Latin American Spanish)	French, Spanish, Portuguese