a snake in the grass

someone who pretends to be your friend while secretly doing things to harm you It's upsetting to learn that someone you once viewed as a good colleague is in fact a snake in the grass.

Common Names:

Name	Pronounced	Usage
Esmeralda	[.ezmə'rældə]
Loris	-	Italian
Efua	-	Western African, Akan
Titania	tə-TAYN-yə (English), tə-TAHN-yə (English), tie-TAYN-yə (English)	Literature
Loyd	[lɔid]
Svantepolk	-	Ancient Scandinavian