a snake (in the grass)

US /ə sneɪk ɪn ðə ɡræs/
UK /ə sneɪk ɪn ðə ɡræs/
"a snake (in the grass)" picture
1.

ular dalam rumput, orang yang licik

a treacherous or deceitful person, especially one who feigns friendship

:
I thought he was my friend, but he turned out to be a snake in the grass.
Saya kira dia teman saya, tapi ternyata dia ular dalam rumput.
Be careful of him; he's known to be a snake in the grass.
Hati-hati dengannya; dia dikenal sebagai ular dalam rumput.