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
Yevgeniya	yev-GYE-nee-yah, eev-GYE-nee-yah	Russian
Lizzie	['lizi]
Ai (2)	-	Chinese
Sa'ida	-	Arabic
Cuidightheach	-	Ancient Irish
Ramirus	-	Ancient Germanic (Latinized)