snake in the grass
n. pl. snakes in the grass
See snake.

[TahlilGaran] American Dictionary ▲

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.

[TahlilGaran] English Idioms Dictionary ▲

snake in the grass
a low and dishonest person; an enemy who pretends to be a friend
The man is a snake in the grass and nobody likes him.

"You should be careful of that woman. Although she seems very nice she is like a snake in the grass."

[TahlilGaran] English Idioms Dictionary ▲

snake in the grass
n. phr., informal A person who cannot be trusted; an unfaithful traitor; rascal.
Did Harry tell you that? He's a snake in the grass!
Some snake in the grass told the teacher our plans.

[TahlilGaran] English Idioms Dictionary ▲