hens' teeth

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

Common Names:

Name	Pronounced	Usage
Adalet	-	Turkish
Wolf	WUWLF (English)	German, Jewish, English (Rare), Ancient Germanic
Chinweike	-	Western African, Igbo
Eve	EEV (English), EV (French)	English, French, Biblical
Christabel	KRIS-tə-bel	English (Rare)
Natia	-	Georgian