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
Ahtahkakoop	-	Native American, Cree
Samar	-	Arabic
Hernando	er-NAHN-do	Spanish
UxÍA	oo-SHEE-a	Galician
Jimmie	['dʒimi]
NebojŠA	-	Serbian, Croatian