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
Farrar	['færə]
Stefcia	STEF-chah	Polish
Evelina	e-ve-LEE-nah (Italian, Swedish)	English, Italian, Swedish
PatrÍCia	pə-TREE-syə (Portuguese)	Slovak, Portuguese
Lennie	LEN-ee	English
Ainsley	['einzli]