hen's tooth

Something very scarce (because hens have no teeth). Typically used in phrases like "as scarce as a hen's tooth." I can hardly believe your brother got an A on his final exam—grades like that are as scarce as a hen's tooth for him!

Common Names:

Name	Pronounced	Usage
Morgan (1)	MAWR-gən (English)	Welsh, English, French
Bloom	[blu:m]
SÉVÉRine	-	French
Yesha'yahu	-	Biblical Hebrew
Andreina	-	Italian
LommÁN	-	Irish